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प्रश्न
Answer briefly.
Define wavelength of a wave.
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उत्तर
Wavelength (λ): The distance between two successive particles which are in the same state of vibration is called the wavelength of the wave. SI unit is (m).
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संबंधित प्रश्न
Answer briefly.
Wave motion is doubly periodic. Explain.
Answer briefly.
Define amplitude.
Answer briefly.
Draw a wave and indicate points which are
- in phase
- out of phase
- have a phase difference of `pi/2`
Answer briefly.
Explain what is meant by phase of a wave.
Define progressive wave.
Solve the following problem.
A tuning fork of frequency 170 Hz produces sound waves of wavelength 2 m. Calculate the speed of sound.
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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 ______.
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A source of 300 Hz frequency, an observer and a wind are moving as shown in the figure with respect to the ground. The frequency heard by observation is ______.
(Take, the speed of sound in air = 340 m/s)
A progressive wave of frequency 500 Hz is travelling with a velocity of 360 m/s. How far apart are two points 60° out of phase?
If a string fixed at both ends vibrates in four loops. The wavelength is 10 cm. The length of string is ______.
