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- Solve! 56 tuning forks are so arranged in series, that each fork gives 4 beats/second with the previous one. If the frequency of the last fork is 3 times that of the first, then the frequency of the first fork will be
56 tuning forks are so arranged in series, that each fork gives 4 beats/second with the previous one. If the frequency of the last fork is 3 times that of the first, then the frequency of the first fork will be
- Option 1)
55 Hz
- Option 2)
110 Hz
- Option 3)
75 Hz
- Option 4)
220 Hz
Answers (1)
As we learnt in
Beat Frequency -
module of
- wherein
Where are frequency of two wave differ slightly in value of frequency.
Let frequency of first fork is . Frequency of forks are
According to Question
Option 1)
55 Hz
This option is incorrect.
Option 2)
110 Hz
This option is correct.
Option 3)
75 Hz
This option is incorrect.
Option 4)
220 Hz
This option is incorrect.
View full answer
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