A hearing test is conducted on an aged person. It is found that her threshold of hearing is 20 decibels at 1 kHz and it rises linearly with frequency to 60 decibels at 9 kHz.

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Asked: 2023-02-26T03:54:04+05:30 In: Science
A hearing test is conducted on an aged person. It is found that her threshold of hearing is 20 decibels at 1 kHz and it rises linearly with frequency to 60 decibels at 9 kHz.

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A hearing test is conducted on an aged person. It is found that her threshold of hearing is 20 decibels at 1 kHz and it rises linearly with frequency to 60 decibels at 9 kHz. The minimum intensity of sound that the person can hear at 5 kHz is-

(A)  10 times than that at 1 kHz

 (B)  100 times than that at 1 kHz

(C)  0.5 times than that at 9 kHz 

 (D)  0.05 times than that at 9 kHz

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    Gandalf

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