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AP EAMCET Engineering 17 Sep 2020 Shift 2 Paper

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Question : 100

Total: 160

Two tuning forks X and Y are of frequencies 280 Hz and 284 Hz. A third tuning fork Z is of unknown frequency, when X and Z are sounded together certain beats are heard per second. When Y and Z are sounded together beat frequency is found to be thrice as great. The frequency of Z is

282 Hz
286 Hz
280 Hz
278 Hz

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