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Cathode rays are similar to visible light rays, in that-

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Important Questions on Physics

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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 9 - Physics>Exercise 7>Q 33
Compton effect is associated with
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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 9 - Physics>Exercise 7>Q 34

Consider the following statements:

A. The strongest force in nature is nuclear force.

B. Atomic power plant works on the principle of fission.

C. Cadmium is not a radioactive element.

D. Einstein's mass-energy relation is given by the expression E=mc2.

Which of the statements given above are correct?

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UPSC CAPF AC Paper - I
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14000+ Objective Questions General Studies>Chapter 9 - Physics>Exercise 7>Q 35
γ-rays are deflected by _____.
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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 9 - Physics>Exercise 7>Q 36

Consider the following statements:

A. Nuclear forces are spin-dependent.

B. The fourth state of matter is known as plasma.

C. Nuclear forces are attractive or repulsive depending upon the separation between nucleons.

D. The main source of solar energy is nuclear fusion.

Which of the statements given above are correct?

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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 9 - Physics>Exercise 7>Q 37
Photoelectric effect can be explained by assuming that light
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UPSC CAPF AC Paper - I
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14000+ Objective Questions General Studies>Chapter 9 - Physics>Exercise 7>Q 38
The electrons are emitted in the photoelectric effect from a metal surface _____.
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UPSC CAPF AC Paper - I
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14000+ Objective Questions General Studies>Chapter 9 - Physics>Exercise 7>Q 39
PSLV-C14 in its latest space quest had carried Oceansat-2 with how many foreign nano-satellites?
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UPSC CAPF AC Paper - I
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14000+ Objective Questions General Studies>Chapter 9 - Physics>Exercise 7>Q 40

Assertion (A) Short wave-based are used for transmission of radio waves to a large distance.

Reason (R) Short waves are reflected from the ionosphere.