Physics · 2018
JEE Main · 15 April 2018, Shift 1 · Q13
A tuning fork vibrates with frequency 256 Hz and gives one beat per second with the third normal mode of vibration of an open pipe. What is the…
A tuning fork vibrates with frequency $\displaystyle 256$ Hz and gives one beat per second with the third normal mode of vibration of an open pipe. What is the length of the pipe ? (Speed of sound in air is $\displaystyle 340 \mathrm{~ms}^{-1}$ )
Official answer
(4)
$\displaystyle 200$ cm
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JEE Main 2018 Physics question, with the answer from NTA’s final answer key. Where our answers come from.