Waves - Result Question 7
7. Which one of the following statements is true?
[2006]
(a) The sound waves in air are longitudinal while the light waves are transverse
(b) Both light and sound waves in air are longitudinal
(c) Both light and sound waves can travel in vacuum
(d) Both light and sound waves in air are transverse
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Answer:
Correct Answer: 7. (a)
Solution:
- (a) Sound waves in air are longitudinal and the light waves are transverse.
Sound waves are longitudinal waves and require medium for their propagation.
Light waves i.e., electromagnetic waves are transverse in nature and do not require medium for their propagation.
