Vibration is ______

Sound is possible only due to the vibration of body

Which of the following instrument do not produce sound?

Find the odd man out

Find the odd man out

Which body part enables us to speak?

Choose correct option with respect to the length of vocal cord

Larynx is also known as

Which of the statement is true for propagation of sound?

Sound can travel through ______

Choose the incorrect option among the following

Consider a setup in which bell is inserted in a jar now allow the bell to ring. Now attach a vacuum pump on the other end. Choose correct option for your observation

Sound usually travels through which medium to reach our ears

From which body part does human hear different sounds

Outer part of ear contains _______ of the following
a. pinna
b. eardrum
c. ear canal
d. coachlea
e. hammar, anvil, stirrup

Middle part of ear contains _______ of the following
a. pinna
b. eardrum
c. ear canal
d. coachlea
e. hammar, anvil, stirrup

Which part of ear collects sound from the surrounding?

Vibrations of sound are amplified by ______

________ converts amplified signals into electrical signal

Brain receive electrical signals through

In oscillatory motion body moves between same position repeatedly

Time during which one cycle of oscillation is completed is called

Number of oscillations per second is called

1Hz frequency is_____

Loudness of sound is measured in terms of

Unit to measure the loudness of sound

If frequency of sound is higher, pitch of sound is

Select the correct audible range for humans

Complete the following sentence, “Dogs can hear sound frequency”

Sound which is pleasant to hear is called

Sound which is unpleasant to hear is called

Which of the following cause of noise pollution?

Choose the correct ill effects of noise pollution

How can we limit noise pollution? Select the correct option

a. Oiling machine properly
b. Use of silencer in transport vehicles
c. Use of clean water
d. Limit use of horns and loudspeakers