Chapter 16 – Waves
Sahay Sir > Question Answers > NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions > Physics > Chapter 16 - Waves
A wave in a string has an amplitude of 2 cm. The wave travels in the positive direction of x axis with a speed of 128 m/s and it is noted that 5 complete waves fit in 4 m length of the string. The equation describing the wave is
31
Aug
A wave in a string has an amplitude of 2 cm. The wave travels in the positive direction of x axis with a speed of 128 m/s and it is noted that 5 complete waves fit in 4 m length of the string. The equation describing the wave is Two vibrating tuning forks produce progressive [...]
A transverse wave is represented by y=Asin(ωt-kx). For what value of the wavelength is the wave velocity equal to the maximum particle velocity?
31
Aug
A transverse wave is represented by y=Asin(ωt-kx). For what value of the wavelength is the wave velocity equal to the maximum particle velocity? A transverse wave is represented by y=Asin(ωt-kx). For what value of the wavelength is the wave velocity equal to the maximum particle velocity? August 31, 2020 Category: Chapter 16 - Waves , [...]
A wave travelling in positive X-direction having displacement along y direction as 1 m, wavelength 2 pie m and frequency 1/pie Hz is represented as
31
Aug
A wave travelling in positive X-direction having displacement along y direction as 1 m, wavelength 2 pie m and frequency 1/pie Hz is represented as A wave travelling in positive X-direction having displacement along y direction as 1 m wavelength 2 pie m and frequency 1/pie Hz is represented as August 31, 2020 Category: Chapter [...]
Two vibrating tuning forks produce progressive waves given by , y1 = 4sin(500πt) and y2 = 2sin(506πt). These tuning forks are held near the ear of person . Number of beats produced per minute is
31
Aug
Two vibrating tuning forks produce progressive waves given by , y1 = 4sin(500πt) and y2 = 2sin(506πt). These tuning forks are held near the ear of person . Number of beats produced per minute is Two vibrating tuning forks produce progressive waves given by y1 = 4sin(500πt) and y2 = 2sin(506πt). These tuning forks are [...]
Two sound waves with wavelengths 5.0 m and 5.5 m respectively, each propagates in a gas with velocity 30m/s We expect the following number of beats per second:
31
Aug
Two sound waves with wavelengths 5.0 m and 5.5 m respectively, each propagates in a gas with velocity 30m/s We expect the following number of beats per second: each propagates in a gas with velocity 30m/s We expect the following number of beats per second: Two sound waves with wavelengths 5.0 m and 5.5 m [...]
The driver of a car travelling with speed 30 m/s towards a hill sounds a horn of frequency 600 Hz. If the velocity of sound in air is 330 m/s, the frequency of reflected sound as heard by driver is
31
Aug
The driver of a car travelling with speed 30 m/s towards a hill sounds a horn of frequency 600 Hz. If the velocity of sound in air is 330 m/s, the frequency of reflected sound as heard by driver is The driver of a car travelling with speed 30 m/s towards a hill sounds a [...]
A tuning fork of frequency 512 Hz makes 4 beats/s with the vibrating string of a piano. The beat frequency decreases to 2 beats/s when the tension in the piano string is slightly increased.The frequency of the piano string before increasing the tension was
31
Aug
A tuning fork of frequency 512 Hz makes 4 beats/s with the vibrating string of a piano. The beat frequency decreases to 2 beats/s when the tension in the piano string is slightly increased.The frequency of the piano string before increasing the tension was (n + 1). They superimpose to give beats. The number of [...]
Two source of sound placed closed to each other, are emitting progressive waves given by y1 = 4 sin 600πt and y2 = 5 sin 608πt. An observed located near these two sources will hear:
31
Aug
Two source of sound placed closed to each other, are emitting progressive waves given by y1 = 4 sin 600πt and y2 = 5 sin 608πt. An observed located near these two sources will hear: are emitting progressive waves given by y1 = 4 sin 600πt and y2 = 5 sin 608πt. An observed located [...]
A source of unknown frequency gives 4 beats/s, when sounded with a source of known frequency 250 Hz. The second harmonic of the source of unknown frequency gives five beats per seconds, when sounded with a source of frequency 513 Hz. The unknown frequency is :
31
Aug
A source of unknown frequency gives 4 beats/s, when sounded with a source of known frequency 250 Hz. The second harmonic of the source of unknown frequency gives five beats per seconds, when sounded with a source of frequency 513 Hz. The unknown frequency is : A source of unknown frequency gives 4 beats/s when [...]
A speeding motorcyclist sees traffic jam ahead of him. He slows down to 36 km/hour. He finds that traffic has eased and a car moving ahead of him at 18 km/hour is honking at a frequency of 1392 Hz. If the speed of sound is 343 m/s, the frequency of the honk as heard by him will be :
31
Aug
A speeding motorcyclist sees traffic jam ahead of him. He slows down to 36 km/hour. He finds that traffic has eased and a car moving ahead of him at 18 km/hour is honking at a frequency of 1392 Hz. If the speed of sound is 343 m/s, the frequency of the honk as heard by [...]