MHT CET 2025 Physics question
Two strings 'X' and 'Y' of a guitar produces a beat frequency of 6 Hz. When the tension of the string 'Y' is increased, the beat frequency is found to be 4 Hz. If the frequency of string 'X' is 300 Hz, then the original frequency of string 'Y' is
Answer: (B)
Solution
With Hz and 6 beats per second, , i.e. 306 Hz or 294 Hz. The frequency of a string is , so increasing the tension of Y increases . If were 306 Hz, increasing it would move it further from 300 Hz and the beat frequency
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