EASY
9th ICSE
IMPORTANT
Earn 100

What is the SI unit of wavelength? 

Important Questions on Sound

HARD
9th ICSE
IMPORTANT

What is the relationship between velocity, frequency and wavelength of a wave?

HARD
9th ICSE
IMPORTANT
A wave vibrates up and down 5 times in 0.5 s and it covers a distance of 7 m during this interval. Calculate the frequency of the wave. 
MEDIUM
9th ICSE
IMPORTANT
A wave vibrates up and down 5 times in 0.5 s and it covers a distance of 7 m during this interval. Calculate the velocity of the wave.
HARD
9th ICSE
IMPORTANT
With the increase in the humidity, does the speed of sound increases or decreases?
HARD
9th ICSE
IMPORTANT
Which animals generates infrasonic sound?
MEDIUM
9th ICSE
IMPORTANT
Write the full name to SONAR.
MEDIUM
9th ICSE
IMPORTANT
Does a supersonic object move faster than sound?
HARD
9th ICSE
IMPORTANT
Give two essential conditions in which sound wave can travel.