The echo of a gun shot is heard 8 sec. after the gun is fired. How far from him is the surface that reflects the sound (velocity of sound in air = 350 m/s)
A man sets his watch by the sound of a siren placed at a distance 1 km away. If the velocity of sound is 330 m/s
Velocity of sound in air is
When the temperature of an ideal gas is increased by 600 K, the velocity of sound in the gas becomes √3 times the initial velocity in it. The initial temperature of the gas is
The frequency of a sound wave is n and its velocity is v. If the frequency is increased to 4n the velocity of the wave will be
The temperature at which the speed of sound in air becomes double of its value at 27°C is
The speed of a wave in a certain medium is 960 m/s. If 3600 waves pass over a certain point of the medium in 1 minute, the wavelength is
Speed of sound at constant temperature depends on
A man standing on a cliff claps his hand hears its echo after 1 sec. If sound is reflected from another mountain and velocity of sound in air is 340 m/sec. Then the distance between the man and reflection point is
What will be the wave velocity, if the radar gives 54 waves per min and wavelength of the given wave is 10 m
The minimum distance of reflector surface from the source for listening the echo of sound is
The type of waves that can be propagated through solid is
A man stands in front of a hillock and fires a gun. He hears an echo after 1.5 sec. The distance of the hillock from the man is (velocity of sound in air is 330 m/s)
The speed of a wave in a medium is 760 m/s. If 3600 waves are passing through a point, in the medium in 2 minutes, then its wavelength is
The frequency of a tunning fork is 384 per second and velocity of sound in air is 352 m/s. How far the sound has traversed while fork completes 36 vibration
If vm is the velocity of sound in moist air, vd is the velocity of sound in dry air, under identical conditions of pressure and temperature
A source of sound of frequency 600 Hz is placed inside water. The speed of sound in water is 1500 m/s and in air is 300 m/s. The frequency of sound recorded by an observer who is standing in air is
If the temperature of the atmosphere is increased the following character of the sound wave is effected
An underwater sonar source operating at a frequency of 60 KHz directs its beam towards the surface. If the velocity of sound in air is 330 m/s, the wavelength and frequency of waves in air are:
Two sound waves having a phase difference of 60° have path difference of
