A source of sound S emitting waves of frequency 100 Hz and an observer – McqOptions

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1.	A source of sound S emitting waves of frequency 100 Hz and an observer 0 are located at some distance from each other. The source is moving with a speed of \[19.4m{{s}^{-1}}\] at an angle of \[60{}^\circ \] with the source observer line as shown in the figure. .The observer is at rest. The apparent frequency observed by the observer is (velocity of sound in air \[330m{{s}^{-1}}\])
A.	103 Hz
B.	106 Hz
C.	97 Hz
D.	100 Hz
Answer» B. 106 Hz

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