Ex/37 : The string is stretched by weight of 4 x 10* kg. If 4 loops are formed on a length 80 cm of the string, calculate the frequency of the fork. (mass per unit length of the string 9.8 x 10 kg/m and g = 9.8 m/s?) (The expt. is set up in parallel position) %3D (March 2000)
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