JEE PHYSICS MCQ: WAVES

1 Medium

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Analyzing +4 | -1

Statement I Two longitudinal waves given by equation

{y_1}\left( {x,t} \right) = 2a\,\,\,\sin \left( {\omega t - kx} \right)

and

{y_2}\left( {x,t} \right) = a\,\,\sin \left( {2\omega t - 2kx} \right)

will have equal intensity.
Statement II Intensity of waves of given frequency in same medium is proportional to square of amplitude only

View answer and explanation

Correct option: B

Statement I is true, Statement II is false

Statement I is true because the intensities are equal, and Statement II is false because intensity depends on both amplitude and frequency.

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