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ACTIVITY NO. 3, MELDE'S EXPERIMENT, Aim: To demonstrate the formation of stationary waves and determine unknown frequency ofa, tuning fork by Melde's experiment., Apparatus: A tuning fork, light flexible string, light pan, weight box, rubber , metre scale., Diagram:, , , , , , ==, uning fork, , (a), , , , , , , , Procedure:, , Tie one end of the string to one of the prongs of the tuning fork and the other end to a light pan., , Pass the string over the pulley. Adjust the pulley such that the string is horizontal., , Adjust the length of the string (between the tuning fork and pulley) to be one metre., , Adjust the tuning fork in the parallel/perpendicular position., , Keep the string under a suitable tension by adding weights to the pan., , Set the tuning fork vibrating by striking one of its prongs gently with a rubber hammer., , Adjust the tension (T) in the vibrating string such that a stable pattern of distinct loops are, , formed on the string. (Nodes should be well-defined.), , 8. Count the number of loops (P) formed on the vibrating string., , 9, Repeat the procedure to obtain different number of loops by changing the tension, keeping the, length of the vibrating string constant throughout the experiment., , 10. Calculate TP*, , Nau Pyner, , Observations:, , f the pan = M, = Weight=M = _, 1. Mass of the p 27 1 g(Weig 6b =1 SY) pgm to, 2. Linear density (mass per unit length) of the string =m = .7...= g/cm, Parallel position/Ps i ion, , en She Sev7in a!45, W Ac? wa Bre = 390 om/s~—, , scanned with Vamscann