Physics · 2022
JEE Main · 25 June 2022, Shift 1 · Q55
The first overtone frequency of an open organ pipe is equal to the fundamental frequency of a closed organ pipe. If the length of the closed organ…
The first overtone frequency of an open organ pipe is equal to the fundamental frequency of a closed organ pipe. If the length of the closed organ pipe is $\displaystyle 20$ cm. The length of the open organ pipe is \_\_\_\_ cm.
Official answer
80
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JEE Main 2022 Physics question, with the answer from NTA’s final answer key. Where our answers come from.