Two mechanical waves, \( y_{1}=2 \sin 2 \pi(50 t-2 x) \) \( \& y_{2}=4 \sin 2 \pi(a x+100 t) \) ...

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Two mechanical waves, \( y_{1}=2 \sin 2 \pi(50 t-2 x) \) \( \& y_{2}=4 \sin 2 \pi(a x+100 t) \) propagate in a
\( \mathrm{P} \) medium with same speed.

W
(1) The ratio of their intensities is \( 1: 16 \)
(2) The ratio of their intensities is \( 1: 4 \)
(3) The value of a is 8 units
(4) The value of \( a \) is 2 units
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