The equation of wave travelling in a string can be written as y = 3 cos pi (100 t - x ) . Its wavelength is :

The equation of wave travelling in a string can be written as y = 3 co

1.	The equation of wave travelling in a string can be written as y = 3 cos pi (100 t - x ) . Its wavelength is :
Answer» 2 cm 5 cm 100 cm None Solution :y = 3 cos `(100 pi t - pi X )` comparing it with y= R cos `(omega t - kx)` we havek = `pirArr (2pi)/(lambda)pirArrlambda = 2 `cm. correct choice is (a) .

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The equation of wave travelling in a string can be written as y = 3 cos pi (100 t - x ) . Its wavelength is :

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