Ratio of intensities of two light waves is given by \( 4: 1 \). The...

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Ratio of intensities of two light waves is given by \( 4: 1 \). The ratio of the amplitudes of the waves is :
P
(1) \( 2: 1 \)
(2) \( 1: 2 \)
W
(3) \( 4: 1 \)
(4) \( 1: 4 \)
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