Question

if the path difference between two waves at a point is 29lamda then the point will be​

Answer 1

Answer:

Given that,

Path difference x=6λ

We know that,

  I=I0cos2(2ϕ)

 I0I=cos2(2ϕ)....(I)

Now, the phase difference is

  ϕ=λ2π×x

 ϕ=λ2π×6λ

 ϕ=3π

Now, put the value of ϕ in equation (I)

  I0I=cos2300

 I0I=43

 I0I=0.75

Hence, the value of ratio of the intensity at the point is 0.75