The apparatus used to determine the velocity | vedclass

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(B) The correct answer is $B$. Kundt's tube is an experimental apparatus used to measure the speed of sound in a gas or a solid rod. In this experimen

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Kundt's tube

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(B) The correct answer is $B$. Kundt's tube is an experimental apparatus used to measure the speed of sound in a gas or a solid rod. In this experiment,longitudinal standing waves are produced in a column of gas (or a rod) using a vibrating source. By measuring the distance between nodes (or antinodes) and knowing the frequency of the source,the velocity of sound can be calculated using the relation $v = f \lambda$. Melde's apparatus is used to study standing waves in a string and to determine the frequency of a tuning fork. Quincke's tube is used to demonstrate the phenomenon of interference of sound waves.

The apparatus used to determine the velocity of sound in a gas is:

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