Speed, Velocity, Acceleration Quiz Questions & Answers - 1

Question: 1

Which one of the following is not electromagnetic in nature?

(A) Infrared rays

(B) Gamma-rays

(C) X-rays

(D) Cathode rays

Ans: D

Cathode rays

Question: 2

Who firstly predicated the existence of electromagnetic waves?

(A) Maxwell

(B) Romar

(C) Marconi

(D) Hertz

Ans: A

Maxwell

Question: 3

The ozone layer absorbs

(A) Ultraviolet rays

(B) Radio waves

(C) Microwaves

(D) Infrared radiation

Ans: A

Ultraviolet rays

Question: 4

The Doppler’s effect is applicable for

(A) Light wave

(B) Sound wave

(C) Space wave

(D) Both (a) and (b)

Ans: D

Both (a) and (b)

Question: 5

SONAR is based on the principle of

(A) Reverberation

(B) Echo

(C) Resonance

(D) None of these

Ans: B

Echo

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