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Physics
Assertion: Sound waves cannot propagate through vacuum but light waves can. Reason: Sound waves cannot be polarised but light waves can be.
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Q.
Assertion:
Sound waves cannot propagate through vacuum but light waves can.
Reason:
Sound waves cannot be polarised but light waves can be.
AIIMS
AIIMS 1997
Waves
A
If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion
33%
B
If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion
50%
C
If Assertion is true but the Reason is false
0%
D
If both Assertion and Reason are false
17%
Solution:
Sound waves are longitudinal in nature and light waves are transverse in character. Moreover light wave is electromagnetic in nature. That’s why light waves do not need a material medium for its propagation.