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प्रश्न
Answer briefly.
Define amplitude.
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उत्तर
Amplitude (A): The largest displacement of a particle of a medium through which the wave is propagating, from its rest position, is called the amplitude of that wave. SI unit is (m).
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संबंधित प्रश्न
Answer briefly.
Wave motion is doubly periodic. Explain.
Answer briefly.
Define wavelength of a wave.
Answer briefly.
Draw a wave and indicate points which are
- in phase
- out of phase
- have a phase difference of `pi/2`
Define the relation between velocity, wavelength, and frequency of the wave.
Define progressive wave.
State any four properties of progressive wave.
Two sinusoidal plane waves of the same frequency having intensities I0 and 4I0 are travelling in the same direction. The resultant intensity at a point at which waves meet with a phase difference of zero radians is ______
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The ratio of minimum to maximum wavelength in Balmer series is ____________.
In frequency modulated wave ______.
The wave of the wavelength 30 cm and frequency 100 Hz will be ______.
When the kinetic energy of an electron is increased, the wavelength of the associated wave will ______.
The following figure shows the shape of part of a long string in which transverse waves are produced by attaching one end of the slring to tuning fork of frequency 300 Hz. The velocity of the waves is ____________.

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When the observer moves towards a stationary source with velocity V1, the apparent frequency of emitted note is F1. When observer moves away from the source with velocity V1, the apparent frequency is F2. If V is the velocity of sound in air and `"F"_1/"F"_2=2` then `"V"/"V"_1` is equal to ______.
The displacement-time graphs of two particles A and B are straight lines making angles of 30° and 60° respectively with the time axis. If the velocity of A is vA and that of B is vB, the value of vA/vB is ______.
Two instruments having stretched strings are being played in unison. When the tension of one of the instruments is increased by 1%, 3 beats are produced in 2 s. The initial frequency of vibration of each wire is ______.
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Wave of frequency 500 Hz has a phase velocity 360 ms-1. The phase difference between two displacement at a certain point at time 10-3 s apart will be ______.
If a string fixed at both ends vibrates in four loops. The wavelength is 10 cm. The length of string is ______.
The energy of photon corresponding to a radiation of wavelength 600 nm is 3.32 × 10−19 J. The energy of a photon corresponding to a wavelength of 400 nm is ______.
