1
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

The moment of inertia of a thin rod about an axis passing through its mid point and perpendicular to the rod is $$2400 \mathrm{~g} \mathrm{~cm}^2$$. The length of the $$400 \mathrm{~g}$$ rod is nearly:

A
8.5 cm
B
17.5 cm
C
20.7 cm
D
72.0 cm
2
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

A particle moving with uniform speed in a circular path maintains:

A
Constant velocity
B
Constant acceleration
C
Constant velocity but varying acceleration
D
Varying velocity and varying acceleration
3
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

If $$c$$ is the velocity of light in free space, the correct statements about photon among the following are:

A. The energy of a photon is $$E=h v$$.

B. The velocity of a photon is $$c$$.

C. The momentum of a photon, $$p=\frac{h v}{c}$$.

D. In a photon-electron collision, both total energy and total momentum are conserved.

E. Photon possesses positive charge.

Choose the correct answer from the options given below:

A
A and B only
B
A, B, C and D only
C
A, C and D only
D
A, B, D and E only
4
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

At any instant of time $$t$$, the displacement of any particle is given by $$2 t-1$$ ($$\mathrm{SI}$$ unit) under the influence of force of $$5 \mathrm{~N}$$. The value of instantaneous power is (in $$\mathrm{SI}$$ unit):

A
10
B
5
C
7
D
6
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