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Q.

Waves of frequency 150 Hz are produced in a string shown below


Question Image

Which of the following is true?


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a

Its wavelength is 20 cm.

b

Its amplitude is 4 cm.

c

Its velocity is 30 m/s.

d

It is transverse in nature. 

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Detailed Solution

Question ImageAll the options are correct regarding the given problem.
From the given diagram we can easily identify that the wavelength of the wave is 20 cm and the amplitude is 4 cm.
Now, the frequency of the wave is 150 Hz and we know that the velocity of a wave is the product of wavelength and frequency.
Therefore, velocity=20×150
=3000 cm/s
=30 m/s.
The given diagram represents a transverse wave.
 
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