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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