Through which of these can we distinguish the light waves from sound waves?
[CBSE PMT 1990; RPET 2000, 02]

Interference

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Refraction

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Polarisation

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Reflection

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Solution

The correct option is C
Polarisation

Hey, think for 10 sec, interference, refraction and reflection are wave phenomenon or do they belong to a subset of waves only? Ya, all waves can do these; sound as well as waves as well as any other. On the other hand, Polarisation is not shown by sound waves, as they are longitudinal. Only transverse waves can undergo polarisation, which makes light eligible for it!

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Through which of these can we distinguish the light waves from sound waves? [CBSE PMT 1990; RPET 2000, 02]

Through which of these can we distinguish the light waves from sound waves?
[CBSE PMT 1990; RPET 2000, 02]