Is Huygen's principle valid for longitud...

Is Huygen's principle valid for longitudinal sound waves?

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Huygens. principle basically states that every point on a wavefront can be considered as a secondary source of tiny wavelets that spread out in the forward direction of the wavefront itself. Sound waves are longitudinal in nature. When one person is speaking directly to another person, he can be heard by other surrounding people too. This is because secondary wavelengths spread out in all different directions.
So, we can say Huygen.s principle is valid for longitudinal sound waves also.

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Huygen's principle is used to

obtain the new position of wavefront geometrically

explain principle of superposition of waves

explain interference of light

explain polarisation of light

Huygen's principle states that

wave is transverse wave

each point of the wavefront is in different phase

each point of the wavefront acts as secondary source

all of these

Huygen's principle is applicable to

only lighht waves

only sound waves

Only mechanical waves

for all the above waves