TNPSC Speed, Velocity, Acceleration GK Questions & Answers - 1

Question: 1

Which one of the following has highest frequency?

(A) Microwaves

(B) Cosmic rays

(C) X-rays

(D) Radio waves

Question: 2

Red shift is an illustration of

(A) Unknown phenomenon

(B) Doppler effect

(C) Low temperature emission

(D) High frequency absorption

Question: 3

Pitch of sound depends on

(A) Frequency

(B) Amplitude

(C) Speed

(D) Wavelength

Question: 4

X-rays absorption will be maximum for the sheets of

(A) Lead

(B) Copper

(C) Iron

(D) Silver

Question: 5

Who discovered wireless communication?

(A) Marconi

(B) Newton

(C) Maxwell

(D) Hertz