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 cmB. 7 cmC. 1 cmD. zero

The displacements of two intering lightwaves are `y_(1) = 4 sin omega

1.	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 cmB. 7 cmC. 1 cmD. zero
Answer» Correct Answer - A `A = sqrt(a_(1)^(2)+a_(2)^(2)+2a_(1)a_(2)cos theta)`

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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 cmB. 7 cmC. 1 cmD. zero

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