Modern Physics Mock Test - 1

Question: 1

The first explosion of an atomic device in India was carried out in the state of

(A) Rajasthan

(B) Jammu and Kashmir

(C) Manipur

(D) Nagaland

Ans: A

Rajasthan

Question: 2

Which of the following will deflect in electric field?

(A) X-rays

(B) Y-rays

(C) Ultraviolet rays

(D) Cathode rays

Ans: D

Cathode rays

Question: 3

Cathode rays enter an electric field normal to the lines of force. Then their path in the electric field is

(A) Parabola

(B) Straight line

(C) Circle

(D) Ellipse

Ans: A

Parabola

Question: 4

Cathode rays can be deflected by

(A) Magnetic field

(B) Electric fields

(C) Both electric and magnetic fields

(D) None of the above

Ans: C

Both electric and magnetic fields

Question: 5

The velocity of photo electron emitted in photoelectric effect depends only on

(A) The wave length of incident light

(B) The frequency and intensity of incident light

(C) The frequency of incident light

(D) None of these

Ans: A

The wave length of incident light

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