NTSE Stage 2 SAT 2018 Exam Question Paper

Question : 35 of 100

Marks: +1, -0

A sound wave is sent simultaneously through a long hollow pipe AB and a solid pipe CD of same length and having same cross-sectional area. A person standing at point P as shown in the figure will hear the sound.

at the same time from pipes, AB and CD
First from pipe CD and then from pipe AB
first from pipe AB and then from pipe CD
From pipe AB only and not from pipe CD

Validate

Solution:

Speed of sound

V_{\solid} > V_{\liquid} > V_{\gas}

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