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प्रश्न
A pipe open at both ends has a length of 1m. The air column in the pipe can not resonate for a frequency (Neglect end correction, speed of sound in air = 340 m/s)
पर्याय
510 Hz
170 Hz
85 Hz
340 Hz
MCQ
रिकाम्या जागा भरा
उत्तर
170 Hz
Explanation:
Fundamental frequency
n = `V/(2ℓ) = 340/(2 xx 1)` = 170 Hz
It can resonate only at integral multiples of 170 Hz.
∴ It can not resonate at 85 Hz.
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