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Subject :NSO    Class : Class 9

Read the passage carefully and answer the following questions.
Two tuning forks, A and B vibrate with frequencies in the ratio 2 : 7 and their wavelengths in the ratio 3 : 4 respectively. Both the tuning forks are placed in different media.
In which of the tuning fork the velocity of sound produced is greater?

A Tuning fork A.
B Tuning fork B.
C Both produce sound of same velocity.
D Cannot say.


The answer should be D as properties of the medium, both inertial and elastic are not described.

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