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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.

The tuning fork A produces relatively

A Shrill sound than tuning fork B
B Flat sound than tuning fork B
C Louder sound than tuning fork B
D Sound of more wavelength than that of tuning fork B.


Its should be "A"

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