Ripples are being generated by a vibrator on the surface of water. The distance between two consecutive crests is 3 cm. Ripples cover a distance of 25.2 cm in 1.2 sec. Calculate the wavelength , wave velocity and frequency of the generated waves.
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Answered by
32
The distance between two consecutive crests is 3 cm
=> wavelength (L) = 3cm
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Ripples cover a distance of 25.2 cm in 1.2 sec
=> wave velocity = distance/time = 25.2/1.2 = 21 cm/s
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velocity = frequency × wavelength
=> frequency = velocity / wavelength
=> frequency = 21/3 = 7 Hz
Thus,
wavelength = 3cm
frequency = 7 Hz
velocity = 21 m/s
=> wavelength (L) = 3cm
============================
Ripples cover a distance of 25.2 cm in 1.2 sec
=> wave velocity = distance/time = 25.2/1.2 = 21 cm/s
===========================
velocity = frequency × wavelength
=> frequency = velocity / wavelength
=> frequency = 21/3 = 7 Hz
Thus,
wavelength = 3cm
frequency = 7 Hz
velocity = 21 m/s
Answered by
14
3 cm is the distance between two consecutive crests
3cm is the wavelength
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25.2 cm in 1.2 sec is the ripples covered distance
25.2/1.2 = 21 cm/s = wave velocity = distance/time.
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Formula:-
Velocity = frequency × wavelength
Frequency = velocity / wavelength
•°•Frequency = 21/3 = 7 Hz
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Hence,
- Wavelength = 3cm
- Frequency = 7 Hz
- Velocity = 21 m/s
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