Which of the following statements is correct?
- AIn case of a wave traveling in a string,the oscillation energy of an elemental length remains constant.
- BIn case of a wave traveling in a string,the oscillation energy of an elemental length varies periodically.
- CIn case of a wave traveling in a string,the kinetic energy of all elemental parts having equal length is the same.
- DNone of these.
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Two waves are represented by
$y_1 = 5 \sin 2 \pi(75 t - 0.25 x)$
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$y_1 = 5 \sin 2 \pi(75 t - 0.25 x)$
$y_2 = 10 \sin 2 \pi(150 t - 0.50 x)$
The intensity ratio $\frac{I_1}{I_2}$ of the two waves is
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