Question

What precautions are required to study the reflection of sound?​

Answer 1

(1) The reflecting surface should be polished.

(2) Angle of incidence way should be equal to the angle of reflecting way.

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Answer 2

Precautions:

The inner surface of the metallic tube should be highly polished.

Metal plate should be highly polished.

The tuning fork should be close to the tube, but it should not touch the tube.

There should be complete silence in the laboratory so that sound from other sources does not interfere.

The ends of metallic tubes should project out at least 1cm from the edge of the table top.