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Shanti Choudhury
Asked: 2022-11-07T21:57:09+05:30 In:

The freuquency of tuning forks A and B are respectively `3%` more and `2%` less than the frequency of tuning fork `C`. When A and B are simultaneously excited, 5 beats per second are produced. Then the frequency of the tuning fork `A` (in Hz)` Is
A. `98`
B. `100`
C. `103`
D. `105`

The freuquency of tuning forks A and B are respectively `3%` more and `2%` less than the frequency of tuning fork `C`. When A and B are simultaneously excited, 5 beats per second are produced. Then the frequency of the tuning fork `A` (in Hz)` Is
A. `98`
B. `100`
C. `103`
D. `105`
Parabola
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  1. Correct Answer – C
    Let `n` the frequency of fork `C` then
    `n_A=n+(3n)/(100)=(103n)/(100)` and `n_B=n-(2n)/(100)=(98)/(100)`
    but `n_A-n_B=5implies(5n)/(100)=5impliesn=100Hz`
    `:. n_A=((103)(100))/(100)=103Hz`

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Amrit Ram
Asked: 2022-11-01T12:10:38+05:30 In:

The freuquency of tuning forks A and B are respectively `3%` more and `2%` less than the frequency of tuning fork `C`. When A and B are simultaneously excited, 5 beats per second are produced. Then the frequency of the tuning fork `A` (in Hz)` Is
A. 98
B. 100
C. 103
D. 105

The freuquency of tuning forks A and B are respectively `3%` more and `2%` less than the frequency of tuning fork `C`. When A and B are simultaneously excited, 5 beats per second are produced. Then the frequency of the tuning fork `A` (in Hz)` Is
A. 98
B. 100
C. 103
D. 105
Parabola
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Leave an answer

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1 Answer

  1. Correct Answer – D

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