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JEE Main Physics Class 11 Waves Part 1 Questions

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Question : 90

Total: 100

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 frequencies between these two. Then, the lowest resonant frequency for this string is

105 Hz
1.05 Hz
1050 Hz
10.5 Hz

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