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Two mechanical waves, y(1) = 2 sin 2 pi ...

Two mechanical waves, `y_(1) = 2 sin 2 pi (5- t - 2x)` & `y_(2) = 4 sin 2 pi(fax + 100 t)` propagate in a medium with same speed.

A

The ratio of their intensities is `1 : 16`

B

The ratio of their intensities is `1 : 4`

C

The value of 'a' is `4` units

D

The value of 'a' is `2` units.

Text Solution

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The correct Answer is:
A, C
`I=(1)/(2)rho v omega^(2)A^(2)` and velocity `=(omega)/(k)`.
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