Question

reflection of longitudinal waves in points

all points ​

Answer 1

Answer:

(b) Reflection of longitudinal wave from rarer medium: When a longitudinal wave travelling in a denser medium is incident on the boundary of rarer medium, there is practically negligible resistance. Thus a compression is reflected as rarefaction and a rarefaction is reflected as a compression.

Explanation:

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Answer 2

REFLECTION OF LONGITUDINAL WAVES :

☞When a wave or a pulse is reflected normally from the surface of a denser medium back into the rarer medium, then tere is a phase difference of π.

☞According to electromagnetic theory When a light beam falls on a boundary of two media, then one part of it will be reflected and other part will be refracted.

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