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A wave in a string has an amplitude of 2...

A wave in a string has an amplitude of `2 cm`. The wave travels in the `+ve` direction of x axis with a speed of 1`28 ms^-1` and it is noted that `5` complete waves fit in `4 m` length of the string. The equation describing the wave is

A

`y = (0.02)m sin(7.85x – 1005t)`

B

`y = (0.02)m sin(7.85x + 1005t)`

C

`y = (0.02)m sin(15.7x – 2010t)`

D

`y = (0.02)m sin(15.7x + 2010t)`

Text Solution

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The correct Answer is:
A
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