Cengage NEET by C.P Singh
When a tuning fork A of frequency 100 Hz is sounded with a tuning fork B, the number of beats per second is 2. On putting some wax on the prongs of B, the number of beats per second becomes 1. The frequency of the fork B is
15
Sep
When a tuning fork A of frequency 100 Hz is sounded with a tuning fork B, the number of beats per second is 2. On putting some wax on the prongs of B, the number of beats per second becomes 1. The frequency of the fork B is the number of beats per second becomes [...]
A tuning fork whose frequency as given by manufacturer is 512 Hz is being tested with an accurate oscillator it is found that the fork produces a 2 beat per sound when oscillator reads 514 Hz and 6 beat per sound when it reads 510 Hz. The actual frequency of fork is
15
Sep
A tuning fork whose frequency as given by manufacturer is 512 Hz is being tested with an accurate oscillator it is found that the fork produces a 2 beat per sound when oscillator reads 514 Hz and 6 beat per sound when it reads 510 Hz. The actual frequency of fork is A thin plane [...]
Two tuning forks of frequencies 256 Hz and 258 Hz are sounded together. The time interval, between two consecutive maxima heard by an observer is
15
Sep
Two tuning forks of frequencies 256 Hz and 258 Hz are sounded together. The time interval, between two consecutive maxima heard by an observer is between two consecutive maxima heard by an observer is Two tuning forks of frequencies 256 Hz and 258 Hz are sounded together. The time interval September 15, 2020 Category: Cengage [...]
Two sources of sound are placed along the diameter of a circle of radius R(R>>41). How many minima will be heard as one moves along the perimeter of circle.
15
Sep
Two sources of sound are placed along the diameter of a circle of radius R(R>>41). How many minima will be heard as one moves along the perimeter of circle. Two sources of sound are placed along the diameter of a circle of radius R(R>>41). How many minima will be heard as one moves along the [...]
Vibrating tuning fork of frequency n is placed near the open end of a long cylindrical tube. The tube has a side opening and is fitted with a movable reflecting piston. As the piston is moved through 8.75 cm, the intensity of sound changes from a maximum to minimum. If the speed of sound is 350 m/s. Then n is
15
Sep
Vibrating tuning fork of frequency n is placed near the open end of a long cylindrical tube. The tube has a side opening and is fitted with a movable reflecting piston. As the piston is moved through 8.75 cm, the intensity of sound changes from a maximum to minimum. If the speed of sound is [...]
Two loudspeakers L1 and L2 driven by a common oscillator and amplifier, are arranged as shown. The frequency of the oscillator is gradually increased from zero and the detector at D records a series of maxima and minima. If the speed of sound is 330 ms^−1 then the frequency at which the first maximum is observed is :
15
Sep
Two loudspeakers L1 and L2 driven by a common oscillator and amplifier, are arranged as shown. The frequency of the oscillator is gradually increased from zero and the detector at D records a series of maxima and minima. If the speed of sound is 330 ms^−1 then the frequency at which the first maximum is [...]
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A thin plane membrane separates hydrogen at 7 degree C from hydrogen at 47 degree C ,
both being at the same pressure. If a collimated sound beam travelling from the cooler gas makes an angle of incidence of 30 degree at the membrane ,
the angle of refraction is ,
Two loudspeakers L1 and L2 driven by a common oscillator and amplifier ,
In a Hall, a person receives direct sound waves from a source 120 m away. He also receives a wave from the same source which reaches him after being reflected from the 25 m high ceiling at a point halfway between them. The two waves interfere constructively for wavelengths (in meters)
15
Sep
In a Hall, a person receives direct sound waves from a source 120 m away. He also receives a wave from the same source which reaches him after being reflected from the 25 m high ceiling at a point halfway between them. The two waves interfere constructively for wavelengths (in meters) A thin plane membrane [...]
A man stands between two parallel cliffs (not in middle). When he claps his hands, he hears two echoes one after 1 second and the other after 2 second. If the velocity of sound in air is 330 ms^−1, the width of the valley is
15
Sep
A man stands between two parallel cliffs (not in middle). When he claps his hands, he hears two echoes one after 1 second and the other after 2 second. If the velocity of sound in air is 330 ms^−1, the width of the valley is A man stands between two parallel cliffs (not in middle). [...]
An engine approaches a hill with a constant speed. When it is at a distant of 0.9 km, it blows a whistle whose echo is heard by the driver after 5 seconds. If the speed of sound in air is 330 m/s, then the speed of the engine is:
15
Sep
An engine approaches a hill with a constant speed. When it is at a distant of 0.9 km, it blows a whistle whose echo is heard by the driver after 5 seconds. If the speed of sound in air is 330 m/s, then the speed of the engine is: An engine approaches a hill with [...]
A thin plane membrane separates hydrogen at 7 degree C from hydrogen at 47 degree C, both being at the same pressure. If a collimated sound beam travelling from the cooler gas makes an angle of incidence of 30 degree at the membrane, the angle of refraction is
14
Sep
A thin plane membrane separates hydrogen at 7 degree C from hydrogen at 47 degree C, both being at the same pressure. If a collimated sound beam travelling from the cooler gas makes an angle of incidence of 30 degree at the membrane, the angle of refraction is A thin plane membrane separates hydrogen at [...]