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Question
Which of the following phenomena can be demonstrated by light. But not with sound waves in an air column ?
Which of the following phenomena can be demonstrated by light. But not with sound waves in an air column ?
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Solution
The correct option is D Polarization
To have polarized waves, they first need to be transverse waves - the disturbance needs to be at right angles to the direction of propagation. Therefore sound waves in air (the usual sort) or in other gases and liquids can't be polarized because they're purely compressive.
Hence, option D is correct.
To have polarized waves, they first need to be transverse waves - the disturbance needs to be at right angles to the direction of propagation. Therefore sound waves in air (the usual sort) or in other gases and liquids can't be polarized because they're purely compressive.
Hence, option D is correct.
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