Sound Test - 10...

Cochlea, semicircular canals and the auditory nerve are associated with

Wave motion is a periodic ____________ produced by a vibrating body.

Statement A: Molecules also move from one place to another in wave motion.
Statement B: Electromagnetic waves don’t need material medium to travel.

Which of the two statement is true

Which of the two statement is true

Statement A: Molecules also move from one place to another in wave motion.
Statement B: Electromagnetic waves don’t need material medium to travel.

“In a human ear, the sound is amplified in the outer ear as well as in the middle ear because of which we are able to listen loud sound only". The above statement is

Which of the two statements is true?

Statement A: An object moving at a speed greater than that of a sound is moving at ultrasonic speed.
Statement B: In a wave motion,only energy is transferred.

Match the following with correct response.

(1) Crest
(2) Trough
(3) Compression
(4) Refraction

(A) Depression
(B) Particles of the medium are farther
(C) Particles of the medium are closer
(D) Elevation

Match the following with correct response.

(1) Loudness
(2) Supersonic speed
(3) Pitch
(4) Timbre

(A) Frequency
(B) Amplitude
(C) Distinguish two sounds
(D) v

Match the following with correct response.

(1) Sound waves
(2) Radio waves
(3) Supersonic jet
(4) Mechanical waves

(A) Longitudinal waves
(B) Shock waves
(C) Transverse waves
(D) Elastic waves

Which of following is incorrect-

(A) SI Unit of frequency is hertz
(B) SI Unit of wavelength is ms^-1
(C) SI Unit of velocity is ms^-2
(D) SI unit of time period is sec