TNPSC Group 1 Study Material in Tamil and English - 2

Question: 6

Resonance is a special case of

(A) Damped vibration

(B) Forced vibration

(C) Natural vibration

(D) None of these

Question: 7

Sounds travels fastest in

(A) Vaccum

(B) Water

(C) Air

(D) Steel

Question: 8

Electromagnetic waves are produced by

(A) A moving charge

(B) A static charge

(C) An acceleration charge

(D) Charge less particle

Question: 9

The quality of a musical note depends upon

(A) Its harmonic content

(B) The wave velocity

(C) Its frequency

(D) Its amplitude

Question: 10

Ultrasonic waves are those waves which

(A) Have large amplitude

(B) Have high velocity

(C) Human beings can hear

(D) Human beings cannot hear