Question

16. Write any two precautions taken while doing an experiment of law of reflection of sound in the laboratory

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Answer 1

Answer:

Angle of incidence and reflection should be same, the ends of the tube should not touch the reflecting surface and both the tubes used should have same diameter. (a) Angle of incidence is formed between the incident and Normal ray, angle of reflection is formed between the reflected and Normal ray.

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Answer 2

Answer:

Angle of incidence and reflection should be same, the ends of the tube should not touch the reflecting surface and both the tubes used should have same diameter. Angle of incidence is formed between the incident and Normal ray, angle of reflection is formed between the reflected and Normal ray.