NEET Physics Waves Questions Solved


A string is stretched between fixed points separated by 75.0 cm. It is observed to have resonant frequencies of 420 Hz and 315 Hz.There are no other resonant frequencies between these two.The lowest resonant frequency for this strings is

(a) 155 Hz   

(b) 205  Hz   

(c) 10.5 Hz   

(d) 105  Hz

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