JEE Mains · Physics · STD 11 - 14. waves and sound
The velocity of sound in a gas. in which two wavelengths \(4.08\,m\) and \(4.16\,m\) produce \(40\) beats in \(12\,s\), will be ..............\(ms ^{-1}\)
- A \(282 .8\)
- B \(175.5\)
- C \(353.6\)
- D \(707.2\)
Answer & Solution
Correct Answer
(D) \(707.2\)
Step-by-step Solution
Detailed explanation
\(f_{b}=f_{1}-f_{2}\) \(\frac{v}{4.08}-\frac{v}{4.16}=\frac{40}{12}\) \(\Rightarrow v =707.2\)
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