In a ripple tank 12 ripples are produced in one second . If distance between crest and next trough is 10cm find :
a) wavelength
b) frequency
c) velocity of the wave.
Answers
Answered by
69
WAVELENGTH OF WAVE IS DISTANCE MOVED DURING ONE OSCILLATION.
Distance between crest and next trough is half of the wavelength. Therefore wavelength is λ = 2 × 10 cm= 20 cm .
FREQUENCY = ν = NUMBER OF RIPPLES PER SEC = 12/SEC = 12 HZ .
Velocity of wave = ν ×λ = 12/sec × 0·2m = 2·4 m/sec
=
Distance between crest and next trough is half of the wavelength. Therefore wavelength is λ = 2 × 10 cm= 20 cm .
FREQUENCY = ν = NUMBER OF RIPPLES PER SEC = 12/SEC = 12 HZ .
Velocity of wave = ν ×λ = 12/sec × 0·2m = 2·4 m/sec
=
Answered by
35
Frequency = Number of ripples produced per second
That is,
Frequency, f = 10 Hz
The frequency of the wave is 10 Hz.
Wavelength, l = 2 × 12 cm = 24 cm = 0.24 m
The wavelength of the wave is 0.24 m.
Velocity of the wave = Frequency × wavelength
v = f × λ
= 10 × 0.24
= 2.4 m/s
The velocity of the wave is 2.4 m/s.
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