Subject Experts Solutions for Chapter: Sound, Exercise 1: Target Exercise

When the pitch of note produced by a harmonium is lowered, then the wavelength of the note

When an aeroplane attains a speed higher than velocity of sound in air, a loud bang is heard. This is because

A body is vibrating with a periodic time of $2\mathrm{milliseconds}$ produces a wave travelling in a medium with a velocity of $1250\mathrm{m}/\mathrm{s}$. What is its wavelength?

A water wave is travelling with a speed of $1.5\mathrm{m}/\mathrm{s}$. If the distance between two consecutive crests is $2.5\mathrm{cm}$. Calculate the frequency of the wave

A rock under water is $1595\mathrm{m}$ deep. Calculate the time in which an ultrasonic signal return after reflection from rock. Given velocity of ultrasonic waves in water is $1450\mathrm{m}/\mathrm{s}$

$A.$ The velocity of sound increases with increase in humidity.
$B.$ Velocity of sound does not depend upon the medium.
Which one of the following in correct?
 

Which of the following frequency of sound can be generated by a vibrating simple pendulum as well as by the vibrating vocal cords of a rhinoceros?

$A.$ Sound wave travel faster on a hot summer day than on a cold winter day.
$B.$ Velocity of sound is directly proportional to square of its absolute temperature.
Which of the following is correct?