MHT CET 2025 Physics question
Two tuning forks when sounded together produce 4 beats per second. One of the forks is in unison with 23 cm length of sonometer wire and other with 24 cm length of the same wire. The frequencies of the two tuning forks are
Answer: (A)
Solution
For a given wire (same tension and mass per unit length) the frequency is inversely proportional to the vibrating length, . So the fork matching 23 cm has the higher frequency and the one matching 24 cm has , with . Beats: .
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