moving 0 with re The served ms 5 Re 20 A source of unknown

Last updated: 6/13/2023

moving 0 with re The served ms 5 Re 20 A source of unknown frequency gives 4 beats s when sounded with a source of known frequency 250 Hz The second harmonic of the source of unknown frequency gives five beats per second when sounded with a source of frequency 513 Hz The unknown frequency is 2013 a 260 Hz b 254 Hz c 246 Hz d 240 Hz 21 A wave travelling in the ve x direction having di