Answer is:
as a secondary source
Explanation:
In the single slit diffraction every point on the slit acts as secondary
Answer is:
parallel
Explanation:
In the single slit diffraction the screen is at a large distance compared to slit width the different rays from the slit would be parallel
Answer is:
The rainbow fringes of an oil slick on water
Explanation:
The rainbow fringes of an oil slick on water cannot be explaind
Answer is:
spreading due to diffraction dominates over that due to ray optics
Explanation:
For distances much greater than Fresnel distance 2F spreading due to diffraction dominates over that due to ray optics
Answer is:
the wave has only y displacements
Explanation:
We say that a light wave is linearly polarized in y direction if the wave has only y displacements