MCQ Questions for Class 12 Medical Physics Quiz with Answers Chapter Wise PDF Download

CBSE Multiple Choice Type Questions for 12th Class Medical Physics PDF formatted study resources are available for free download. These Grade 12 Medical Physics CBSE MCQ Mock Test helps you learn & practice the concepts in a fun learning way.

Class 12 Medical Physics MCQs Multiple Choice Questions with Answers

Here are the chapterwise CBSE MCQ Quiz Test Questions for Class 12th Medical Physics in pdf format that helps you access & download so that you can practice online/offline easily.

Alternating Current Class 12 Medical Physics MCQ Quiz

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Alternating Current Questions and Answers

Alternating Current Quiz Question Answer
Which one of the following represents capacitive reatance versus angular frequency graph?
The frequency at which $$1\ H$$ inductor will have a reactance of $$2500\ \Omega$$ is: $$398\ Hz$$
A series AC circuit has a resistance of $$4\Omega $$ and a reactance of $$3\Omega$$. The impedance of the circuit is  $$5\,\Omega$$
The ratio of peak value and r.m.s value of an alternating current is $$ \sqrt{2} $$
In a circuit $$LC = 10^{-3}H, C = 10^{-3} F$$. Find angular frequency.
 $$1000 \,rad/sec$$
Alternating current is flowing in inductance $$L$$ and resistance $$R$$. The frequency of source is $$\omega/2\pi$$ Which of the following statement in correct:
 For low frequency the limiting value of impedance is $$L$$.
The power factor of L-R circuit is : $$\dfrac{R}{\omega L}$$
Current in the circuit is wattless, if Resistance in the circuit is zero
An inductance of $$2H$$ , capacitance of $$8\mu F$$ and resistance of  $$10K\Omega$$ are connected in series to an AC source of $$100V$$ with adjustable frequency. The angular frequency at which current in the circuit is maximum is : $$250 \ rad/s$$
If $${W_1}and\;{W_2}$$ are half power frequencies of series LCR circuit, Then the reasonant frequency of the circuit is- $$\sqrt {{W_1}\;{W_2}} $$

Atoms Class 12 Medical Physics MCQ Quiz

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Atoms Questions and Answers

Atoms Quiz Question Answer
According to DE Broglie, wavelength of electron in second orbit is 10$$^{ -9 }$$ meter. Then the circumstances of orbit is :- 2×10$$^{ -9 }$$m
In a H-atom, the transition takes place from L to K shell. If $$R=1.08\times {10}^{7}{m}^{-1}$$, the wave length of the light emitted is nearly $$1250\mathring{A}$$
Which of the following particles cannot be deflected by magnetic field ?
 Neutrons
In which of the following fields cathode rays show minimum deflection ?
 Gravitational field
How will you relate velocity of cathode rays to c, if ‘c' denotes the velocity of light?
 Less than c
Anti-particle of proton is
 Antiproton
If the K.E. of a cathode ray beam is 8KeV, then the tube should work at a Potential Difference of
 8 KV
On decreasing principal quantum number $$n$$, the value of $$r$$ will :
 decrease
Who proposed the planetary model of the atom? Neils Bohr
In Rutherford experiment, most of the alpha particles go straight through the foil because________ Most part of the atom is empty.

Current Electricity Class 12 Medical Physics MCQ Quiz

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Current Electricity Questions and Answers

Current Electricity Quiz Question Answer
If the length of a potentiometer wire is increased by keeping constant potential difference across the wire, then _______. null point is obtained at larger distance
Charge supplied by the battery is? $$100$$ pC
When battery and galvanometer are interchanged in the case of Wheatstone bridge, then? If the bridge was in adjustment before interchange, it will be in adjustment after interchange
Direction of induced e.m.f. is determined by -
 Fleming's right hand rule
Metals are good conductors because: outer electrons are loosely bound to the atom
In the given circuit, no cur rent is passing through the galvanometer. If the cross-sectional diameter of AB is doubled then for null point of galvanometer the value of AC would

41760.jpg		 $$x$$
Calculate ratio of $${ i }_{ 1 }$$ and $$({ i }_{ 1 }+\quad { i }_{ 2 })$$.
1305639_d9cd92959b8d4ce0affa68a1aff30299.PNG		 $$\dfrac { 2 }{ 5 } $$
Two copper conductors A,B carrying currents of $$1A$$ and $$1.2A$$ respectively. If the radii are in the ratio of $$2:3$$ then the drift speed of the electrons in the two conductors are in the ratio  $$5:8$$
The amount of work done by the cell on a unit positive charge carrier to force it to go to the point of higher potential is called emf
e.m.f. is measured in $$\dfrac{\text{Joules}}{\text{coulomb}}$$

Dual Nature Of Radiation And Matter Class 12 Medical Physics MCQ Quiz

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Dual Nature Of Radiation And Matter Questions and Answers

Dual Nature Of Radiation And Matter Quiz Question Answer
A free particle with initial kinetic energy $$E$$ and de-broglie wavelength $$\lambda$$ enters a region in which it has potential energy $$U$$. What is the particle's new de-Broglie wavelength? $$\lambda (1-U/E)^{-1/2}$$
In which of the following photocell is not used? Vacuum cleaner
If the $$KE$$ of a free electron doubles then its de-Broglie wavelength changes by a factor
 $$\displaystyle\dfrac{1}{\sqrt 2}$$
The ratio of the energy of a photon of $$2000 \mathring { A } $$ wavelength  to that of $$4000\mathring { A } $$ wavelength is : $$2$$
If a photon has velocity $$c$$ and frequency $$v$$, then which of the following represents its wavelength $$\dfrac {hc}{E}$$
The work function of a substance is 4.0 eV. The longest wavelength of light that can cause photoelectron emission from this substance is approximately:  310 nm
Photon of frequency $$'v\ '$$ has a momentum associated with it. If $$'c\ '$$ is the velocity of light, the momentum is  $$hv/c$$
A Laser light of wavelength $$660 \,nm$$ is used to weld Retina detachment. If a Laser pulse of width $$60\,ms$$ and power $$0.5\,kW$$ is used, the approximate number of photons in the pulse are:
[Take Planck's constant $$h=6.62\times 10^{-34}Js$$]		 $$10^{20}$$
For which of the following particles will it be most difficult to experimentally verify the de-Broglie relationship? A dust particle
If electron charge e, electron mass m, speed of light in vacuum c and Planck's constant h are taken as fundamental constant h are taken as fundamental quantities, the permeability of vacuum $$\mu_0$$ can be expressed in units of
 $$\left (\dfrac {h}{ce^2}\right )$$

Electric Charges And Fields Class 12 Medical Physics MCQ Quiz

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Electric Charges And Fields Questions and Answers

Electric Charges And Fields Quiz Question Answer
Five ball numbered $$1$$ to $$5$$ are suspended using separate threads. Pairs $$(1,2)$$, $$(2,4)$$ and $$(4,1)$$ show electrostatic attraction while pairs $$(2,3)$$, $$(4,5)$$ show repulsion. Therefore, ball $$1$$ must be neutral
The magnitude of charges of electric dipole is $$3.2 \times {10^{ - 5}}$$ and distance between them is $$2.4A.$$ If it is placed in an electric field $$4 \times {10^5}\,V/m$$ then its diple moment is (in C-m) $$7.68 \times {10^{ - 15}}$$
The electric field in a region is given by $$\vec { E } =a\hat { i } +b\hat { j } $$. Here a and b are constants. Find the net flux passing through a square area of side $${ L }_{ 0 }$$  parallel to y-z plane $$a{ L }_{ 0 }^{ 2 }$$
The nature of charge on the object can be detected by: Electroscope
A cone of base radius $$R$$ and height $$h$$ is located in a uniform electric field $$\overrightarrow{E}$$ parallel to its base. The electric flux entering the cone is:
 $$E h R$$
The electric field in a region of space is given by $$\vec E=E_0\hat i+2 E_o\hat j$$ where $$E_o=100 N/C$$. The flux of this field through a circular surface of radius $$0.02$$ m parallel to the Y-Z plane is nearly : $$0.125 Nm^2/C$$
The magnitude of the average electric field normally present in the atmosphere just above the surface of the Earth is about $$150 N/C$$, directed inward towards the center of the Earth. This gives the total net surface charge carried by the Earth to be : [Given $$\epsilon_0=8.85\times 10^{-12} C^2/N-m^2, R_E=6.4\times 10^6m]$$ $$-680 kC$$
......... Charge is produced by friction Stationary
A few electric field lines for a system of two charges $$Q_{1}$$ and $$Q_{2}$$ fixed at two different points on the $$x$$-axis are shown in the figure. These lines suggest that

32046.PNG		 at a finite distance to the right of $$Q_{2},$$ the electric field is zero
Consider an electric field $$\overline{E}=E_{0}\hat{x}$$, where $$E_{0}$$ is a constant. The flux through the shaded area (as shown in the figure) due to this field is:

28712.PNG		 $$E_{0}a^{2}$$

Electromagnetic Induction Class 12 Medical Physics MCQ Quiz

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Electromagnetic Induction Questions and Answers

Electromagnetic Induction Quiz Question Answer
Whenever the magnetic flux linked with a coil changes, then there is an induced emf in the circuit. This emf lasts :
 so long as the change in the flux takes place
When the flux linked with a coil changes :
 an emf is always induced and a current is induced when the coil is a closed one
The average self-induced emf in a $$25 m H$$ solenoid when the current in it falls from $$0.2 A$$ to $$0 A$$ in $$0.01$$ second, is 
 $$0.5 V$$
The coefficient of self inductance and the coefficient of mutual inductance have 
 same units and same dimensions
Assertion (A): Whenever the magnetic flux linked with a closed coil changes there will be an induced emf as well as an induced current.
Reason (R): According to Faraday, the induced emf is inversely proportional to the rate of change of magnetic flux linked with a coil.
 A is true but R is false
When current is coil changes from 5 A to 2 A in 0.1 s, an average of 50 V is produced. The self-inductance of the coil is. 1.67 H
In an AC generator, a coil with $$N$$ turns, all of the same area $$A$$ and total resistance $$R$$, rotates with frequency $$1 rad/s$$ in a magnetic field $$B$$. The maximum value of emf generated in the coil is:
41116.jpg		 $$N.A.B$$
A $$10 \,m$$ long horizontal wire extends from North East to South West. It is falling with a speed of $$5.0 \,ms^{-1}$$, at right angles to the horizontal component of the earth's magnetic field, of $$0.3 \times 10^{-4} \,Wb/m^2$$. The value of the induced emf in wire is: $$1.1 \times 10^{-3} V$$
At time $$t = 0$$ magnetic field of $$1000$$ Gauss is passing perpendicularly through the area defined by the closed loop shown in the figure. If the magnetic field reduces linearly to $$500$$ Gauss, in nest $$5s$$, then induced EMF in the loop is:
1697215_dfe3d6487bb84a75965e94dcea91cf20.png		 $$56\mu V$$
When the current changes from $$+2 A$$ to $$- 2 A$$ in $$0.05$$ second, an e.m.f. of $$8 V$$ is induced in a coil. The coefficient of self-induction of the coil is : $$0.1 H$$

Electromagnetic Waves Class 12 Medical Physics MCQ Quiz

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Electromagnetic Waves Questions and Answers

Electromagnetic Waves Quiz Question Answer
Some radio waves of frequency of about $$1.5\times 10^9$$ Hz was received by a radio-telescope from distance star. If the speed of the waves is $$3\times 10^5$$ km/s, then the wave-length of the wave will be? $$0.2$$ m
The energy of photon of electromagnetic radiation of wavelength$$=2000\mathring{A}$$ is? $$0.99\times 10^{-18}$$J
A radio wave of intensity l is reflected by a surface. The intensity (I), if pressure exerted on the surface is $$2\times 10^{-8}N/m^2$$, will be? $$3 N/m^2$$
A TV tower has a height of $$100$$m. The area covered by the TV broadcast, if radius of the earth is $$6400$$ km, will be? $$402\times 10^7m^2$$
The current option, if speed of gamma rays, X-rays and microwaves are $$v_g, v_x$$ and $$v_m$$ respectively will be? $$v_g = v_x = v_m$$
Arrange the following electromagnetic radiations per quantum in the order of increasing energy:
A: Blue light
B: Yellow light
C: X-ray
D: Radiowave 
 D,B,A,C
What is the displacement current between the square plate of side 1 cm of a capacitor, if electric field between the, plates is changing at the rate of 3 x $$10^6 V_m^{-1}S^{-1}$$?  2.7 x $$10^{-9}$$ A
Choose the correct equation of maxwell ampere circuital law: $$\oint \vec { B } \cdot \overline { d l } = \mu _ { 0 } \left( i _ { c } + \varepsilon _ { 0 } \frac { d \phi _ { E } } { d t } \right)$$
Which of the following sources of light is different from others Sodium light
Which wavelength of sun is used finally as electric energy?  Infrared waves

Electrostatic Potential And Capacitance Class 12 Medical Physics MCQ Quiz

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Electrostatic Potential And Capacitance Questions and Answers

Electrostatic Potential And Capacitance Quiz Question Answer
The plates of a parallel-plate capacitor are not exactly parallel. The surface charge density, therefore, each plate will have the same potential at each point
In the given circuit, if potential difference between points $$A$$ and $$B$$ is $$4V$$, then, resistance $$X$$ is:-
1121306_20d3ee636c144e19a49efa85d80b755d.PNG		 $$20 \Omega$$
What is the S.I. unit of electric potential?  volt
A battery is used to charge a parallel plate capacitor till the potential difference between the plates becomes equal to the electromotive force of the battery. The ratio of the energy stored in the capacitor and the work done by the battery will be :
 $$\dfrac{1}{2}$$
An electric charge $$10^{-3}\mu C$$ is placed at the origin $$(0,0)$$ of X - Y co-ordinate system. Two points A and B are situated at $$(\sqrt{2},\sqrt{2})$$ and $$(2, 0)$$ respectively. The potential difference between the points A and B will be: zero
A parallel plat capacitor is made of two circular plates separated by a distance of $$5 mm$$ and with a dielectric of dielectric constant $$2.2$$ between them. When the electric field in the dielectric is $$3 \times 10^4$$V/m, the charge density of the positive plate will be close to: $$6 \times 10^{-7} C/m^2$$
A sheet of aluminium foil of negligible thickness is introduced between the plates of a capacitor. The capacitance of the capacitor remains unchanged
A parallel plate capacitor has a dielectric slab of dielectric constant K between its plates that covers 1/3 of the area of its plates, as shown in the figure. The total capacitance of the capacitor is C while that of the portion with dielectric in between is C$$_1$$. When the capacitor is charged, the plate area covered by the dielectric gets charge Q$$_1$$ and the rest of the area gets charge Q$$_2$$. The electric field in the dielectric is E$$_1$$ and that in the other portion is E$$_2$$. Choose the correct option/options, ignoring edge effects :

113720.jpg		 $$\displaystyle \frac{C}{C_1} = \frac{2+K}{K}$$
What is the electric potential at a distance of 9 cm from 3 nC? $$300 V$$
A parallel plate air capacitor of capacitance C is connected to a cell of emf V and then disconnected from it. A dielectric slab of dielectric constant K, which can just fill the air gap of the capacitor, is now inserted in it. Which of the following is incorrect? The charge on the capacitor is not conserved

Magnetism And Matter Class 12 Medical Physics MCQ Quiz

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Magnetism And Matter Questions and Answers

Magnetism And Matter Quiz Question Answer
The force which a magnet exerts on iron and steel is called the. magnetic force
Magnetic lines of force due to a bar magnet do not intersect because  A point always has a single net magnetic field
Relative permittivity and permeability of a material are $$\epsilon_{\mathrm{r}}$$ and $$\mu_{\mathrm{r}}$$, respectively. Which of the following values of these quantifies are allowed for a diamagnetic material? 
 $$\epsilon_{\mathrm{r}}=1.5,\ \mu_{\mathrm{r}}=0.5$$
The B-H curve for a ferromagnet is shown in the figure. The ferromagnet is placed inside a ling solenoid with $$1000$$ turns/cm.. The current that should be passed in the solenoid to demagnetise the ferromagnet completely is:
868212_dacb31dcc4e64b6abb3b755d2b261c6e.png		 $$1 mA$$
Curie temperature is the temperature above which a ferromagnetic material becomes paramagnetic
An example of a perfect diamagnet is a superconductor. This implies that when a superconductor is put in a magnetic field of intensity $$B$$, the magnetic field $$B_S$$ inside the superconductor will be such that : $$B_S=0$$
Three identical bars A, B and C are made of different magnetic materials. When kept in a uniform magnetic field, the field lines around them look as given in the figure . Make the correspondence of these bars with their material being diamagnetic (D), ferromagnetic (F) and paramagnetic (P) .
99262.png		 $$A \leftrightarrow F, B \leftrightarrow D, C \leftrightarrow P$$
Needles $$N_{1}, N_{2}$$ and $$N_{3}$$ are made of a ferromagnetic, a paramagnetic and a diamagnetic substance respectively. A magnet when brought close to them will  attract $$\mathrm{N}_{1}$$ strongly, $$\mathrm{N}_{2}$$ weakly and repel $$\mathrm{N}_{3}$$ weakly.
The figure gives experimentally measured B vs. H variation in a ferromagnetic material. The retentivity, co-ercivity and saturation, respectively, of the material are :
1697157_bb522d10aa5244b1a21184908cf2ab0b.png		 $$1.0 T, 50 A/m$$ and $$1.5 T$$
A thin diamagnetic rod is placed vertically between the poles of an electromagnet. When the current in the electromagnet is switched on, then the diamagnetic rod is pushed up, out of the horizontal magnetic field. Hence the rod gains gravitational potential energy. The work required to do this comes from. The current source

Moving Charges And Magnetism Class 12 Medical Physics MCQ Quiz

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Moving Charges And Magnetism Questions and Answers

Moving Charges And Magnetism Quiz Question Answer
A particle with a specific charge s is fired with a speed v towards a wall at a distance d, perpendicular to the wall. What minimum magnetic field must exist in this region for the particle not to hit the wall? $$\frac{v}{sd}$$
The distance between the supply wires of an electric-mains is $$12cm$$. These wires experience $$4mg$$ weight per unit length. Current flowing in both the wire will be if they carry current in same direction. $$4.85A$$
An electron, a proton and an alpha particle having the same kinetic energy are moving in circular orbits of radii $$r_e, r_p, r_{\alpha}$$ respectively in a uniform magnetic field B. The relation between $$r_e, r_p, r_{\alpha}$$ is? $$r_e < r_p = r_{\alpha}$$

A particle of charge $$-16\times 10^{-18}$$ coulomb moving with velocity 10 $$\mathrm{m}\mathrm{s}^{-1}$$ along the x-axis enters a region where a magnetic field of induction $$\mathrm{B}$$ is along the $$\mathrm{y}$$ -axis, and an electric field of induction $$\mathrm{B}$$ is along the $$\mathrm{y}$$-axis, and an electric field of magnitude $$10^{4}\mathrm{V}/\mathrm{m}$$ is along the negative $$\mathrm{z}$$-axis. lf the charged particle continues moving along the $$\mathrm{x}$$-axis, the magnitude of $$\mathrm{B}$$ is
 $$10^{3}\mathrm{W}\mathrm{b}/\mathrm{m}^{2}$$
Which of the following expressions are applicable to the moving coil galvanometer? $$\displaystyle \overrightarrow {\tau}=\overrightarrow{M}\times\overrightarrow{B}$$
A charged particle moves through a magnetic field perpendicular to its direction. Then the momentum changes but the kinetic energy is constant
Two long conductors, separated by a distance $$d$$ carry currents $$I_1$$ and $$I_2$$ in the same direction. They exert a force $$F$$ on each other. Now the current in one of them is increased to two times and its direction is reversed. The distance is also increased to $$3d$$. The new value of the force between them is:  $$\dfrac{-2F}{3}$$
Two long straight parallel wires, carrying (adjustable) current $$I_1$$ and $$I_2$$, are kept at a distance d apart. If the force 'F' between the two wires is taken as 'positive' when the wires repel each other and 'negative' when the wires attract each other, the graph showing the dependence of 'F', on the product $$I_1I_2$$, would be
A particle of mass M and charge Q moving with velocity $$\vec v$$ describe a circular path of radius R when subjected to a uniform transverse magnetic field of induction B. The work done by the field when the particle completes one full circle is $$zero$$
A particle of mass $$\mathrm{M}$$ and charge $$\mathrm{Q}$$ moving with velocity $$\vec{V}$$ describes a circular path of radius $$\mathrm{R}$$ when subjected to a uniform transverse magnetic field of induction B. The work done by the field when the particle completes one full circle is
 zero

Nuclei Class 12 Medical Physics MCQ Quiz

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Nuclei Questions and Answers

Nuclei Quiz Question Answer

For a nucleus to be stable, the correct relation between neutron number N and proton number Z is 

 $$N \geqslant Z$$
Let $$u$$ denote one atomic mass unit. One atom of an element of mass number $$A$$ has mass exactly equal to $$Au$$ only for $$A=12$$
In the nuclear reaction ; $$_{92}U^{238}\rightarrow _{z}Th^{A}+_{2}He^{4}$$ the values of A and Z are:  A=234,Z=90
If half-life of a radioactive substance is $$60$$ minutes, then the percentage decay in $$4$$ hours is? $$93.7\%$$
In the nuclear reaction : $$X(n, \alpha)_3Li^7$$ the term $$X$$ will be 3  $$_5 B ^{10}$$
The relation between $$U(r)$$ and r for diatomic molecule is given as $$U(r)=\dfrac{a}{r^{12}} - \dfrac{b}{r^5}$$
The energy of dissociation of the molecule if given as		 $$\dfrac{b^2}{4a^2}$$
The order of magnitude of radius of nucleus is ___________. $$10^{-15} m$$
Fusion reactions take lace at high temperature because kinetic energy is high enough to overcome repulsion between nuclei
In the options below which one of the isotope of the uranium can cause fission reaction? $$U_{235}$$
$$O^{19}\longrightarrow F^{19}+e+\bar v$$
In this decay, the rest mass energy of $$O^{19}$$ and $$F^{19}$$ are $$17692.33\ MeV$$ and $$17687.51\ MeV$$ respectively. The $$Q$$ factor of the decay is :		 $$4.82\ MeV$$

Ray Optics And Optical Instruments Class 12 Medical Physics MCQ Quiz

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Ray Optics And Optical Instruments Questions and Answers

Ray Optics And Optical Instruments Quiz Question Answer
Monochromatic light is refracted from air into the glass of refractive index $$ \mu $$. The ratio of the wavelength of incident and refracted waves is

 $$ \mu $$ :1
The refractive index of the material of a concave lens is $$\mu.$$ It is immersed in a medium of refractive index $$\mu_1$$. A parallel beam of light is incident on the lens. The path of the emergent rays when $$\mu_1>\mu$$ is :
What are the colours of the Sun observed most during sunrise/sunset and noon? 
 reddish and orange
The magnifying power of a telescope with tube length $$60cm$$ is $$5$$. What is the focal length of its eye piece? $$10cm$$
The aperture diameter of a telescope is $$5m$$. The separation between the moon and the earth is $$4\times 10^5$$ km. With light of wavelength of $$5500\overset{o}{A}$$, the minimum separation between objects on the surface of moon, so that they are just resolved, is close to? $$60$$ m
A ray of light is incident on a prism $$\mathrm{A}BC$$ of refractive index $$\sqrt{3}$$ as shown in figure.
(a) Find the angle of incidence for which the deviation of light ray by the prism $$\mathrm{A}BC$$ is minimum.
(b) By what angle the second prism must be rotated, so that the final ray suffer net minimum deviation. 

42885.jpg		 $$60^o$$, $$60^o$$
Monochromatic light is incident on a glass prism of angle A. If the refractive index of the material of the prism is $$\mu$$, a ray incident at an angle $$\theta$$, on the face AB would get transmitted through the face AC of the prism provided
299495_64b82ce4ea0e44c1918685789d66550b.png		 $$\theta > sin^{-1}\left[\mu \, sin \left(A - sin^{-1}\left(\frac{1}{\mu}\right) \right)\right]$$
A ray $$OP$$ monochromatic light is incident on the face $$AB$$ of prism $$ABCD$$ near vertex $$B$$ at an incident angle of $$60^{o}$$ (see figure). If the refractive index of the material of the prism is $$\sqrt{3}$$, which of the following is (are) correct?

32047.PNG		 The angle between the incident ray and the emergent ray is 90$$^{o}$$
An astronomical refracting telescope will have large angular magnification and high resolution, when it has an objective lens of : Large focal length and large diameter
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

Semiconductor Electronics: Materials, Devices And Simple Circuits Class 12 Medical Physics MCQ Quiz

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Semiconductor Electronics: Materials, Devices And Simple Circuits Questions and Answers

Semiconductor Electronics: Materials, Devices And Simple Circuits Quiz Question Answer
In a p-type semiconductor, the majority carries are Holes
Logic gate realised from pn junctions shown in figure is
1268821_e4d3b631510c4ef7bc3bf95f3096163e.png		 OR gate
The principal of LASER action involves
 All of the above
In common base circuit, output resistance is moderate
For a transistor, $$\beta=100$$. The value of $$\alpha$$ is $$0.99$$
The output of an OR gate is connected to both the inputs of a NAND gate. The combination will serve as: NOR gate
What is the output Y in the following circuit when all the three inputs A, B, C are first $$0$$ and then $$1$$?

516334.png		 $$1,0$$
The bond, that exists in a semiconductor is
 covalent bond
In a transistor, 
 length of collector is greater than that of emitter
Select the correct statement from the following:
 A diode can be used as a rectifier

Wave Optics Class 12 Medical Physics MCQ Quiz

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Wave Optics Questions and Answers

Wave Optics Quiz Question Answer
According to Huygens, the ether medium pervading entire universe is
 Highly elastic and less dense
Which of the following properties shows that light is a transverse wave? Polarization
Two sources are called coherent if they produce waves having a constant phase different
Ray optics is valid when characteristic dimensions are much larger than the wavelength of light
Light travels in a ________ path rectilinear
Light, like sound, cannot pass through vacuum. State whether true or false False
State whether true or false.
Light is a form of energy that causes a sensation of smell.		 False
The inability of a lens to bring all the rays coming from a point object to focus at one single point is called
 Spherical aberration
Light is a form of _______ that we can detect with our ________ . energy, eyes
Which of the following statements about the behaviour of light is not correct? Interference patterns are evident for light behaving as rays.

Medical Physics MCQ Questions for Class 12 - Practice Test with Solutions 

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