NEET UG PHYSICS MCQ: WAVES

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A string is stretched between fixed points separated by 75.0 cm. It is observed to have resonant frequencies of 420 Hz and 315 Hz. There are no other resonant frequency for this string is:

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Correct option: A

105 Hz

Option A (105 Hz) is correct because it is the greatest common divisor of the two resonant frequencies, representing the fundamental frequency.

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