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The displacements of two intering lightw...

The displacements of two intering lightwaves are `y_(1) = 4 sin omega t` and `y_(2) = 3 cos(omega t)`. The amplitude of the resultant wave is (`y_(1)` and `y_(2)` are in CGS system)

A

5 cm

B

7 cm

C

1 cm

D

zero

Text Solution

Verified by Experts

The correct Answer is:
A
`A = sqrt(a_(1)^(2)+a_(2)^(2)+2a_(1)a_(2)cos theta)`
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