Question 1

The loudness of sound depends on:

Accepted Answer

amplitude

Answer

pitch

Answer

frequency

Answer

decibel

Question 2

An object is vibrating at 50 hertz. What is its time period?

Accepted Answer

0.02 sec

Answer

0.2 sec

Answer

2 sec

Answer

20 sec

Question 3

Humans produce voice from which organ?

Accepted Answer

Voice Box

Answer

None of the above

Answer

Adams apple

Answer

Throat

Question 4

Number of oscillations per second is called

Accepted Answer

Frequency

Answer

amplitude

Answer

Hertz

Answer

Decibels

Question 5

A sound which is pleasant to ears is called

Accepted Answer

music

Answer

noise

Answer

none of the above

Answer

harmony

Question 6

What is the speed of sound in vaccum?

Accepted Answer

zero

Answer

infinite

Answer

340 m/sec

Answer

3 x 10⁸ m/sec.

Question 7

..............can hear the sounds of frequencies higher than 20,000Hz.

Accepted Answer

Bats

Answer

Human

Answer

dolphins

Answer

whales

Question 8

Galton whistle works on which type of waves?

Accepted Answer

ultrasound

Answer

all of the above

Answer

infrasound

Answer

audible

Question 9

A coiled organ filled with fluid

Accepted Answer

cochlea

Answer

stirrup

Answer

ear drum

Answer

anvil

Question 10

What is the sound wave used in a SONAR

Accepted Answer

ultrasound

Answer

audible range

Answer

none of the above

Answer

infrasound

Related quizzes

Related quizzes