1.

A pulse is propagating on a long stretched string along its length taken as positive x-axis. Shape of the string at t = 0 is given byy = sqrt(a^2 - x^2)when |x| lt= a = 0when |x| gt= a.What is the general equation of pulse after some time 't' , if it is travelling along positive x-direction with speed V?

Answer»

`y(x,t) = SQRT(a^2 - (x + VT)^2) " when " |x+ Vt| lt= a = x + Vt " when " | x + Vt| GT= a `
`y(x,t) = sqrt(a^2 + (x - Vt)^2) " when " |x - Vt| lt= a= a " when " |x + Vt| gt= 0 `
`y(x,t) = sqrt(a^2 - (x - Vt)^2) " when " |x - Vt| lt= a = 0" when " |x - Vt| gt= a `
`y(x,t) = sqrt(a^2+ (x + Vt)^2) " when " |x + Vt| lt= a = a " when " (x + Vt) gt= a `

Answer :C


Discussion

No Comment Found

Related InterviewSolutions