1.

A transverse harmonic wave on a string is described by y(x,t)=3.0sin(36t+0.018x+(pi)/(4)) where x and y are in cmand 't' is in sec. The positive direction of 'x' is from left to right Which of the following are true (a) the wave is travelling from right to left (b) the speed of the wave is 20m//s (c ) frequency of the wave is 5.7Hz (d) the least distance between two successive crests in the wave is 2.5cm.

Answer»

`a,b`
`a,b,c`
`c,d`
`a,c,d`

SOLUTION :`V=(OMEGA)/(K)`, `v=(omega)/(2pi)`, `lambda=(2pi)/(k)`


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