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A source of sound gives five beats per second, when sounded with another source of frequency 100 s^(-1). The second harmonic of the source, together with a source of frequency 205 s^(-1) gives five beats per second. What is the frequency of the source ?

Answer» <html><body><p>`105 s^(-1)` <br/>205 `s^(-1)` <br/><a href="https://interviewquestions.tuteehub.com/tag/95-342378" style="font-weight:bold;" target="_blank" title="Click to know more about 95">95</a> `s^(-1)` <br/>100 `s^(-1)` .</p>Solution :The freq. of the <a href="https://interviewquestions.tuteehub.com/tag/source-1219297" style="font-weight:bold;" target="_blank" title="Click to know more about SOURCE">SOURCE</a> is `(100 pm 5) ` i.e., 105 or 95 Hz. The second harmonic is 210 or 190 . As is <a href="https://interviewquestions.tuteehub.com/tag/gives-1007647" style="font-weight:bold;" target="_blank" title="Click to know more about GIVES">GIVES</a> 5 beats / sec with 205 , <a href="https://interviewquestions.tuteehub.com/tag/therefore-706901" style="font-weight:bold;" target="_blank" title="Click to know more about THEREFORE">THEREFORE</a>, its freq. is 105 and harmonic 210 . <br/> correct choice is (a). <br/> correct choice is (c).</body></html>


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