CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

The wavelength of the waves arriving at P from two coherent sources S1 and S2 is 4 m, while intensity of each wave is I0. The resultant intensity at P is 2I0. Find the minimum value of  S2P in metres.

  1. x52
  2. 2x
  3. (x+1)
  4. (x+2)


Solution

The correct option is C (x+1)
I=Io+Io+2Io.Iocosϕ=2Io
So,
cosϕ=0
ϕ=nπ2=π2
(n=1) for)  S2P to be minimum

ϕ=2πΔxλ=π2
Δx=1 m

We know,
Δx=S2PS1P=1
S2P=S1P+1=(x+1) m

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
QuestionImage
QuestionImage
View More...


People also searched for
QuestionImage
QuestionImage
View More...



footer-image