A 200cm length of the wire weighs 0.6 gm. If the tension in the wire caused by a 500 gm mass hanged from it. If the approximate wavelength of a wave of frequency 400Hz sent down by it is 2^(n)xx10^(-2)m. Find the value of n (g=9.8m//s^(2))

A 200cm length of the wire weighs 0.6 gm. If the tension in the wire c

1.	A 200cm length of the wire weighs 0.6 gm. If the tension in the wire caused by a 500 gm mass hanged from it. If the approximate wavelength of a wave of frequency 400Hz sent down by it is 2^(n)xx10^(-2)m. Find the value of n (g=9.8m//s^(2))
Answer» SOLUTION :`MU=` Mass per unit length `=m/l=(0.6xx10^(-3))/2=3XX10^(-4)kg//m` `T=mg=0.5xx9.8=4.9Nimplies` Tension in the string `V=` speed of wave in string`=sqrt(T/(mu))` `=sqrt(4.9/(3xx10^(-4)))=128m//s` `lamdaimplies` wavelength of the wave `=v/f=128/400=32xx10^(-2)m=2^(5)xx10^(-2)m` `implies n=5`

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A 200cm length of the wire weighs 0.6 gm. If the tension in the wire caused by a 500 gm mass hanged from it. If the approximate wavelength of a wave of frequency 400Hz sent down by it is 2^(n)xx10^(-2)m. Find the value of n (g=9.8m//s^(2))

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