velocity of a wave is 320m/s and time is 4ms find the wavelength & frequncy
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Answered by
23
Answer:
80 m length
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Answered by
2
Answer:
(3) 8cm, 4000 Hz
Step by step explanation:
It is given that the speed of the wave is 320 m/s.
It is also visible from the diagram that the distance 'x' = 20 cm.
The number of waves visible in the diagram is 2 and a half waves.
Therefore, the wavelength = x/number of waves = 20/2.5 = 8 cm.
Speed = Frequency*Wavelength
Frequency = Speed/Wavelength = 320/0.08 = 4000 Hz.
Therefore, the correct answer is (3) 8cm, 4000 Hz
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