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CSE · Paper I · Waves & Opticscse-2017-subject-02-001

Beats — UPSC Physics Optional CSE 2017 Paper I

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Find the velocity of sound in a gas in which two waves of wavelengths $1.00\,\mathrm{m}$ and $1.01\,\mathrm{m}$ produce 10 beats in 3 seconds.

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