Explain the formation of fringes due to a single slit, when path difference of light waves from the ends of the slit on reaching a point is (i)lambda (ii)3/2 lambda.
-Wave Optics
Solution
Diffraction through single slit is well explained in our studymaterial. Link is given below
https://www.meritnation.com/cbse-class-12-science/physics/physics-part-ii/wave-optics/studymaterial/46_4_216_254_8671
Formation of fringes
When path difference is λ
We get general condition of minima
asinθ=nλ ...(ii)
The position of nth maxima will be given by
asinθ=(n+1/2)λ
n =1
asinθ=(3/2)λ
So when path difference is (3/2)λ we get secondary maxima.
Diffraction through single slit is well explained in our studymaterial. Link is given below
https://www.meritnation.com/cbse-class-12-science/physics/physics-part-ii/wave-optics/studymaterial/46_4_216_254_8671
Formation of fringes
When path difference is λ
We get general condition of minima
asinθ=nλ ...(ii)
The position of nth maxima will be given by
asinθ=(n+1/2)λ
n =1
asinθ=(3/2)λ
So when path difference is (3/2)λ we get secondary maxima.