Reducing the exposed surface area of the body (e.g. by curling up) allows humans to maintain the same body temperature while reducing the energy lost by radiation

The amount of energy radiated by the body in 1 second is close to 60 joules

If the body temperature rises significantly then the peak in the spectrum of electromagnetic radiation emitted by the body would shift to longer wavelengths

The amplitude of the maximum net emf induced due to both the loops is equal to the amplitude of maximum emf induced in the smaller loop alone

The emf induced in the loop is proportional to the sum of the areas of the two loops

The rate of change of the flux is maximum when the plane of the loops is perpendicular to plane of the paper

The frequency at which the current will be in phase with the voltage is independent of R

JEE Questions for Physics Motion In A Straight Line Quiz 1

Physics-Motion in a Straight Line-81249.png

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0%
2)
0%
0%

Physics-Motion in a Straight Line-81255.png

0%
0%
2)
0%
0%

Students I, II and III perform an experiment for measuring the acceleration due to gravity (g) using a simple pendulum. They use different lengths of the pendulum and /or record time for different number of oscillations. The observations are shown in the table.

Least count for length = 0.1 cm

Least count for time = 0.1 s

Physics-Motion in a Straight Line-81199.png

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EI = 0
0%
EI is minimum
0%
EI = EII
0%
EII is maximum

A particle moves with constant acceleration along a straight line starting from rest. The percentage increase in its displacement during the 4th second compared to that in the 3rd is

0%
33%
0%
40%
0%
66%
0%
77%

A car moving at speed 50 km/h one applying brake stops at a distance of 6m. If same car move with the velocity 100 km/h, what distance it cover after applying the brakes.

0%
12 m
0%
18 m
0%
24 m
0%
6 m

A vernier calipers has 1 mm marks on the main scale. It has 20 equal divisions on the Vernier scale which match with 16 main scale divisions. For this Vernier calipers, the least count is

0%
0.02 mm
0%
0.05 mm
0%
0.1 mm
0%
0.2 mm

The density of a solid ball is to be determined in an experiment. The diameter of the ball is measured with a screw gauge, whose pitch is 0.5 mm and there are 50 divisions on the circular scale. The reading on the main scale is 2.5 mm and that on the circular scale is 20 divisions. If the measured mass of the ball has a relative error of 2 %, the relative percentage error in the density is

0%
0.9 %
0%
2.4 %
0%
3.1 %
0%
4.2 %

Physics-Motion in a Straight Line-81205.png

0%
The amount of energy radiated by the body in 1 second is close to 60 joules
0%
Reducing the exposed surface area of the body (e.g. by curling up) allows humans to maintain the same body temperature while reducing the energy lost by radiation
0%
0%
If the body temperature rises significantly then the peak in the spectrum of electromagnetic radiation emitted by the body would shift to longer wavelengths

Physics-Motion in a Straight Line-81208.png

0%
The emf induced in the loop is proportional to the sum of the areas of the two loops
0%
The amplitude of the maximum net emf induced due to both the loops is equal to the amplitude of maximum emf induced in the smaller loop alone
0%
0%
The rate of change of the flux is maximum when the plane of the loops is perpendicular to plane of the paper

In 1.0 s, a particle goes from point A to point B, moving in a semicircle of radius 1.0 m (see Figure). The magnitude of the average velocity
Physics-Motion in a Straight Line-81211.png

Physics-Motion in a Straight Line-81211.png

0%
3.14 m/s
0%
2.0 m/s
0%
1.0 m/s
0%
Zero

Physics-Motion in a Straight Line-81213.png

0%
0%
The frequency at which the current will be in phase with the voltage is independent of R
0%
0%

A bullet when first into a target loses half of its velocity after penetrating 20 cm. Further distance of penetration before it comes to rest is

0%
6.66 cm
0%
3.33 cm
0%
12.5 cm
0%
10 cm
0%
5 cm

A cricket ball thrown across a field is at heights h₁ and h₂ from the point of projection at times t₁ and t₂ respectively after the throw. The ball is caught by a fielder at the same height as that of projection. The time of the ball in this journey is

0%
0%
2)
0%
0%

A particle of mass 0.2 kg is moving in one dimension under a force that delivers a constant power 0.5 W to the particle. If the initial speed (in ms^-1) of the particle is zero, then the speed (in ms^-1) after 5 s is

0%
4
0%
2
0%
1
0%
5

Physics-Motion in a Straight Line-81225.png

0%
0%
2)
0%
0%

The relation between time t and distance x is t = αx² + βx where α and β are constants. The retardation is

0%
-2 αv3
0%
2 βv3
0%
2 αβv3
0%
2 β2v3

A person throws balls into air vertically upward in regular intervals of time of 1 s. The next ball is thrown when the velocity of the ball thrown earlier becomes zero. The height to which the balls rise is (assume, g =10 m/s²)

0%
20 m
0%
5 m
0%
10 m
0%
7.5 m

A particle is travelling along a straight line OX . The distance x (in metre) of the particle from O at a time t is given by x = 37 + 27t – t³, where t is time in second. The distance of the particle from O when it comes to rest is

0%
81 m
0%
91 m
0%
101 m
0%
111 m

A bullet on penetrating 30 cm into its target loses its velocity by 50%. What additional distance will it penetrate into the target before it comes to rest?

0%
30 cm
0%
20 cm
0%
10 cm
0%
5 cm

A ball is dropped vertically from a height d above the ground. It hits the ground and bounces up vertically to a height d/2. Neglecting subsequent motion and air resistance, its velocity v varies with the height h above the ground as

0%
6 s, 64 m
0%
6 s, 48 m
0%
4 s, 32 m
0%
4 s, 16 m

A ball is dropped from the roof of a tower of height h. The total distance covered by it in the last second of its motion is equal to the distance covered by it in first 3 s. What is the value of h?

0%
125 m
0%
5 m
0%
58 m
0%
250 m

Physics-Motion in a Straight Line-81241.png

0%
–8 m/s2
0%
–6 m/s2
0%
0.4 m/s2
0%
5 m/s2

A body moves in a plane, so that the displacement along X and Y–axes is x = 3t² and y = 4t² , then velocity is

0%
15 t2
0%
20 t2
0%
5 t2
0%
None of these

The distance travelled s by an accelerated particle of mass M is given by the following relation [in MKS units] s = 6t + 3t². The velocity of the particle after 2 s in corresponding unit.

0%
6
0%
12
0%
18
0%
24

Physics-Motion in a Straight Line-81245.png

0%
R
0%
R3
0%
0%

A particle crossing the origin of coordinates at time t = 0 , moves in the xy-plane with a constant acceleration a in y-direction. If, its equation of motion is y= bx² ( where, is b is a constant), its velocity component in the x–direction is

0%
0%
2)
0%
0%
0%

A symmetric star shaped conducting wire loop is carrying a steady state current I as shown in the figure. The distance between the diametrically opposite vertices of the star is 4a. The magnitude of the magnetic field at the center of the loop is
Physics-Motion in a Straight Line-81267.png

Physics-Motion in a Straight Line-81267.png

0%
0%
2)
0%
0%

The position coordinates of a particle moving in xy–plane as a function of time t are
x = 2t² + 6t +25m
and y=t² + 2t + 2m
The speed of particle at t =10s, is

0%
31 m/s
0%
51 m/s
0%
71 m/s
0%
81 m/s

Physics-Motion in a Straight Line-81274.png

0%
3.55 m/s
0%
5.03 m/s
0%
8.75 m/s
0%
10.44 m/s

A particle moves along X-axis. The position x of particle w.r.t. time t from origin given by x = b₀ + b₁ t + b₂t². The acceleration of particle is

0%
b0
0%
b1
0%
b2
0%
2b2

JEE Questions for Physics Motion In A Straight Line Quiz 1 - MCQExams.com

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Practice Physics Quiz Questions and Answers

JEE Questions for Physics Motion In A Straight Line Quiz 1 - MCQExams.com

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Practice Physics Quiz Questions and Answers

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