MHT CET 2025 Physics question
The closed and open organ pipe have same length and when they are vibrating simultaneously in first overtone produce 3 beats. The length of open pipe is made and that of closed pipe is made 3 times the original, the number of beats produced will be (Neglect end correction)
Answer: (B)
Solution
Let the common length be and speed of sound . Open pipe (lowest mode): ; closed pipe: . Beats , so Hz and Hz (the same difference arises when the corresponding overtones, and
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