Question

An organ pipe, open from both end produces 5 beats per second when vibrated with a source of frequency 200 Hz. The second harmonic of the same pipes produces 10 beats per second with a source of frequency 420 Hz. The fundamental frequency of organ pipe is(a) 195 Hz(b) 205 Hz(c) 190 Hz(d) 210 Hz

Answer 1

$<b>$

Option B is Correct

Answer 2

205 H is the fundamental frequency of organ pipe.