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Q.

The frequencies of three tuning forks A, B and C have a relation nA > nB > nC. When the forks A and B are sounded together the number of beats produced is n1. When A and C are sounded together the number of beats produced is n2, then the number of beats produced when B and C are sounded together is

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a

n2 – n1

b

n1 – n2

c

\large \frac{{{n_1} + {n_2}}}{2}

d

n1 + n2

answer is C.

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Detailed Solution

\large {n_A} - {n_B}\, = \,{n_1}

\large {n_A} - {n_c}\, = \,{n_2}

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