Question
Physics Question on Waves
Sound waves cannot propagate through vacuum but light waves can. Sound waves cannot be polarised but light waves can be.
A
If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion
B
If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion
C
If Assertion is true but the Reason is false
D
If both Assertion and Reason are false
Answer
If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion
Explanation
Solution
Sound waves are longitudinal in nature and light waves are transverse in character. Moreover light wave is electromagnetic in nature. That?? why light waves do not need a material medium for its propagation.