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  4. The ratio of intensities of two waves are given by 4: 1. The ratio of the amplitudes of the two waves is

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Q. The ratio of intensities of two waves are given by $4: 1$. The ratio of the amplitudes of the two waves is

Wave Optics

Solution:

$I \propto a^{2} \Rightarrow \frac{a_{1}}{a_{2}}=\left(\frac{4}{1}\right)^{1 / 2}=\frac{2}{1}$