A source of sound S emitting waves of frequency 100 Hz and an observer O are located at some distance from each other. The source is moving with a speed of 19.4 ms⁻¹ at an angle of 60⁰ with the source observer line as shown in the figure. The observer is at rest. The apparent frequency observed by the observer (velocity of sound in air 330 ms⁻¹), is

Options

(a) 106 Hz
(b) 97 Hz
(c) 100 Hz
(d) 103 Hz

Correct Answer:

103 Hz

Explanation:

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