JEE PHYSICS MCQ: WAVES

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Application +4 | -1

A train of sound waves is propagated along a wide pipe and it is reflected from an open end. If the amplitude of the waves is

0.002 \mathrm{~cm}

, the frequency is

1000 \mathrm{~Hz}

and the wavelength is

40 \mathrm{~cm}

, the amplitude of vibration at a point

10 \mathrm{~cm}

from open end inside the pipe will be

View answer and explanation

Correct option: A

zero

Option A (zero) is correct because at a distance of

\lambda/4

from an open end, there is a node where the amplitude of vibration is zero.

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