The phase difference between two points seperated by 0.8 m in a wave of frequency
The phase difference between two points seperated by 0.8 m in a wave of frequency 120 Hz is 0.5 π. The wave velocity is
Options
(a) 144 m/s (b) 256 m/s (c) 384 […]
Questions
The maximum and minimum intensities of two sources is 4:1. The ratio of amplitude is
The maximum and minimum intensities of two sources is 4:1. The ratio of amplitude is
Options
(a) 3 : 1 (b) 1 : 3 (c) 1 : √3 (d) √3 : 1
Correct Answer: […]
When the wavelength of sound changes from 1 m to 1.01 m,
When the wavelength of sound changes from 1 m to 1.01 m, the number of beats heard are 4. The velocity of sound is
Options
(a) 400 m/s (b) 300 m/s (c) 404 m/s […]
The maximum particle velocity in a wave motion is half the wave velocity.
The maximum particle velocity in a wave motion is half the wave velocity. Then the amplitude of the wave is equal to
Options
(a) λ/4π (b) 2λ/π (c) λ/2π (d) λ
Correct Answer: […]
For a wave propagating in a medium, identify the property that is independent
For a wave propagating in a medium, identify the property that is independent of the others.
Options
(a) Velocity (b) Wavelength (c) Frequency (d) All these depend on each other
Correct Answer:
Frequency
A stone thrown into still water, creates a circular wave pattern moving radially
A stone thrown into still water, creates a circular wave pattern moving radially outwards. If r is the distance measured from the centre of the pattern, the amplitude of the wave varies as
Options […]
Frequency of stretched string will increase by
Frequency of stretched string will increase by
Options
(a) Decreasing tension and increasing density of material of wire (b) Keeping tension constant and increasing density (c) Keeping tension constant and decreasing density (d) […]
An observer moving away from a stationary source. The observed frequency is half
An observer moving away from a stationary source. The observed frequency is half of the emitted frequencies. The velocity of observer is (c=speed of sound in air)
Options
(a) c (b) c/2 (c) c/3 […]
If sound wave travel from air to water, which of the following remains unchanged?
If sound wave travel from air to water, which of the following remains unchanged?
Options
(a) Velocity (b) Wavelength (c) Frequency (d) Intensity
Correct Answer:
Frequency
Explanation:
No explanation available. Be the first […]
A tuning fork of frequency x produces 4 beats with a source of 256 Hz and 8 beats
A tuning fork of frequency x produces 4 beats with a source of 256 Hz and 8 beats with another source of 268 Hz. Then x equals to
Options
(a) 256 Hz (b) […]