$$Answer:-$$ D option

Plane of polarization is a confinement of the electric/magnetic field vector to a given plane along the direction of propagation. Therefore angle between them is $$ { 0 }^{ o }$$

The range adjacent to the visible spectrum is called the near infrared and the longer wavelength part is called far infrared. The region just below the visible in wavelength is called the near ultraviolet. Hence the visible part of electromagnetic spectrum lies in between ultraviolet and infrared. 

Earth's atmosphere is divided into different layers, out of which the ozone layer absorbs the X-rays and $$\gamma$$-rays whereas visible light and microwaves are the waves which are not absorbed by any layer of atmosphere.

Since radio frequency waves can travel long distances because these waves are of wave length of the order of $$100\:m$$ and their energy content is quite large, e.m. waves of audible frequency are superimposed with radio frequency waves.

Radio wave enters from an un-ionised medium to an ionised medium, the wave incident on the boundary of the medium deviates from its straight path, i.e., will bend away from normal because ionised medium behaves as a rarer medium w.r.t. to un-ionised medium.

$$c = f\lambda$$
Here $$\lambda = 6000 A.U.$$
         $$ = 6000 \times {10}^{-10}   m$$
         $$ = 6 \times {10}^{-7}   m$$
and $$c = 3 \times {10}^{8}   m/s$$

1. Photoelectric effect was discovered by heinrich Rudoy Hertz.
2. Compton effect was discovered by Aethur Holl Compton.
3. Raman effect was discovered by Sir Chandrasekhar Venbata Ram. 

      So, none of these effect was discovered by Maxwell.

Visible light means i.e visible to human eye.

wavelength of following lights are:
$$\gamma$$-rays:$$10pm$$
x-rays:($$10pm-10nm$$)
UV-rays:($$10nm-380nm$$)
visible rays:($$380nm-750nm$$)
so,visible rays has maximum wavelength.

We know that radiation is emission or transmission of energy in the form of waves or particles.

$$\beta$$ -rays are streams of electron and cosmic rays are waves coming from space. So they are not electromagnetic waves.

Light consists of electric and magnetic field that are perpendicular $${ 90 }^{ 0 }$$ to each other.
APPOACH by example
Electric field inside plates. The magnetic field this given rise to via the displacement current is along the perimeter of the circle parallel to capauatates plates.

In vacuum, all component of white light travel at speed of light$$ = 3 \times 10^8 m/s$$

Flux of certain closed surface is zero and so it tells that net magnetic charge is equal to zero. This is possible when there are two equal and opposite poles.

Hertz produced em waves by oscillating charge between dipolar electric field. 
A charge moving with non-zero acceleration where both magnetic and electric field are varying emits em waves but this does not explain assertion. 

All of the options are uses of UV Radiations. 

The displacement current is that current which comes into play in the region in which the electric field and hence the electric flux is changing with time.
Maxwell found that conduction current (I) and displacement current $$(I_{d})$$ together have the property of continuity, although individually they may not be continuous. Maxwell also predicted that this current produces the same magnetic field as a conduction current can produce.
Displacement current is given by
$$I_{d} = \dfrac {dq}{dt} = 1.8\times 10^{-8}C/s$$

We know that visible light has wave length in the region of $$\displaystyle 4000\overset { \circ  }{ A } -7000\overset { \circ  }{ A } $$. If we take infrared as approximately having wavelength of $$\displaystyle 7000\overset { \circ  }{ A } $$ then applying $$\displaystyle v\lambda =c$$
$$\displaystyle v\times 7000\times { 10 }^{ -10 }=3\times { 10 }^{ 8 }$$
$$\displaystyle v=\frac { 3\times { 10 }^{ 8 } }{ 7\times { 10 }^{ -7 } } =\frac { 3 }{ 7 } \times { 10 }^{ 15 }Hz$$
$$\displaystyle =4.3\times { 10 }^{ 14 }Hz$$

Momentum of a photon
$$\displaystyle =\frac { h }{ \lambda  } =\frac { h }{ { c }/{ v } } =\frac { hv }{ c } =\frac { E }{ c } $$
Momentum over unit area
$$\displaystyle =\frac { E }{ Ac } =\frac { I }{ c } \left[ I=\frac { E }{ A } for\quad wave \right] $$
Since surface is non reflecting, final momentum of photon = 0, change in momentum $$\displaystyle =\frac { I }{ c } $$
So, force per unit area $$\displaystyle =\frac { I }{ c } $$
Pressure of radiation $$\displaystyle =\frac { I }{ c } $$

Wavelength of the light       $$\lambda = 420$$ nm $$ = 420 \times 10^{-9}$$  m

Cavitation, i.e., identification of bubbles within a solid object is detected by ultrasonic waves.

The velocity of X-ray is the velocity (c) of light. 

If we observe the electromagnetic spectrum , we see that gamma rays has the highest frequency.

Intensity or power per unit area of the radiations,
$$P = pv$$
$$\Rightarrow p=\dfrac{p}{v} = \dfrac{0.5}{3\times 10^8}=0.166\times 10^{-8}N/m^2$$

Maxwell pointed out the inconsistency of the Ampere's circuital law. He said that there is also a current flow, in the space between the plates of a capacitor due to time varying electric field between the plates. Maxwell named this current as displacement current ($$i_{d}$$). This concept makes a continuous flow of current in an electric circuit containing a capacitor.

Displacement current is the current that occurs due to charging electric field  introduced by maxwell. It depends on the frequency of electric field while conduction current follows ohms law, requires medium displacement.Current doesnot follow ohms law nor require medium.

Displacement current $$=\dfrac{dQ}{dt}=\dfrac{d(CV)}{dt}$$

Too much UV radiation from the sun or sunbeds can damage the genetic material (the DNA) in your skin cells. If enough DNA damage builds up over time, it can cause cells to start growing out of control, which can lead to skin cancer. Your body has ways of repairing most of the damage.

Non mechanical waves are waves that do not require a medium for transfer of their energy to occur electromagnetic waves are the only type of non mechanical waves.

If the spring is compressed, particles of the spring come close and there is compression.When spring is extended, particles rarefact from each other . Direction of particle motion is in the direction of wave propagation, Hence longitudinal waves  .

Maxwell predicted that an accelerated charge produces a sinusoidal time varying magnetic field, which in turn produces a sinusoidal time varying electric field. These two fields are mutually perpendicular to each other and sources of each other. They (fields) form an electromagnetic wave i.e. the wave that is propagated by simultaneous periodic variations of electric field ($$\vec E$$)and magnetic field intensity ($$\vec B$$).

Displacement current $$=\dfrac{dQ}{dt}=\dfrac{d(CV)}{dt}$$

Displacement current $$= I_D=C\dfrac{dV}{dT}=C\omega V_o=\dfrac{V_o}{X_c}=\dfrac{220V}{100\Omega}=2.2A$$
As we are asked amplitude of displacement current. So, we don't have to worry about charge on capacitor.

Infrared radiation are used in microwaves ovens in electronagnetiic spectrum frequency and energy of microwave is smaller than visible light water contain is required for coobing food in microwave oven almost all food item contain some water contain.Microwaves interact with water molecules all atoms via their electric and magnetic fileds. Temprature of water molecules increases by this these water molecule share this energy with neighbouring food molecules, heating up the food.

The following are the time ranges of the given phenomena:

Maxwell added the concept of displacement current in AMpere Circuit Law which governs the conduction in the wire of conduction current. After the deviation compass between capacitor  Maxwell thought of magnetic lines which would be the result of varying current known as displacement current. So by continuing the displacement in Amperes law, Maxwell was able to show the result of Amperes conduction in circuit moving electrons and also the result of faraday generation of ME waves.

Wave number $$k=\dfrac{2\pi}{\lambda}$$

Electromagnet waves have electric field as well as magnetic field which are perpendicular to each other and the electromagnetic waves propagate in a direction which is perpendicular to both the fields.

Displacement current is a quantity appearing in Maxwell's equations that is defined in terms of the rate of change of electric displacement field. Displacement current came into existence when Maxwell observed that if a magnetic compass is placed between the capacitors the needle gets deflected which signifies presence of magnetic fields which would possibly caused due to some changing current. Current flow inside the capacitor due to accumulation of charges on the capacitor walls is called displacement current.However it is not an electric current of moving charges, but a 'time-varying electric field'. Hence option D is incorrect.

According to Maxwell's hypothesis, changing of electric field gives rise to Magnetic field.

Velocity of EM wave      $$v = 3\times 10^{8}$$  $$m/s$$