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Two identical flutes produce fundamental notes of frequency 300 Hz at 27° C

Two identical flutes produce fundamental notes of frequency 300 Hz at 27° C. If the temperature of air in one flute is increased to 31° C, the number of beats heard per sec will be

Options

(a) 1
(b) 2
(c) 3
(d) 4

Correct Answer:

2

Explanation:

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