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JEE Main 9 Jan 2019 Shift 2 Solved Paper

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Question : 8

Total: 90

A musician using an open flute of length 50 cm produces second harmonic sound waves. A person runs towards the musician from another end of a hall at a speed of 10 km/h. If the wave speed is 330 m/s, the frequency heard by the running person shall be close to :

753 Hz
500 Hz
333 Hz
666 Hz

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