MHT CET · Physics · Waves and Sound
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
- A \(96 \mathrm{~Hz}, 92 \mathrm{~Hz}\)
- B \(92 \mathrm{~Hz}, 88 \mathrm{~Hz}\)
- C \(72 \mathrm{~Hz}, 68 \mathrm{~Hz}\)
- D \(48 \mathrm{~Hz}, 44 \mathrm{~Hz}\)
Answer & Solution
Correct Answer
(A) \(96 \mathrm{~Hz}, 92 \mathrm{~Hz}\)
Step-by-step Solution
Detailed explanation
\(\frac{f_1}{f_2} = \frac{L_2}{L_1} = \frac{24}{23}\) \(f_1 - f_2 = 4\)
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