Part 1
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 [...]
A sound wave travelling with a velocity V in a medium A reaches a point on the interface of medium A and medium B. If the velocity in the medium B be 2V, then the angle of incidence for total internal reflection of the wave will be greater than:
14
Sep
A sound wave travelling with a velocity V in a medium A reaches a point on the interface of medium A and medium B. If the velocity in the medium B be 2V, then the angle of incidence for total internal reflection of the wave will be greater than: A sound wave travelling with a [...]
How many times more intense is a 90 dB sound than a 40 dB sound ?
14
Sep
How many times more intense is a 90 dB sound than a 40 dB sound ? How many times more intense is a 90 dB sound than a 40 dB sound ? September 14, 2020 Category: Cengage NEET by C.P Singh , Chapter 17 - Sound Waves , Part 1 ,
If the intensity of sound is doubled, the intensity level will increase by nearly
14
Sep
If the intensity of sound is doubled, the intensity level will increase by nearly If the intensity of sound is doubled the intensity level will increase by nearly September 14, 2020 Category: Cengage NEET by C.P Singh , Chapter 17 - Sound Waves , Part 1 ,