Chapter Questions
What do you mean by diffraction of light?
What is grating element?
What should be the order of size of obstacle for diffraction of light?
What is resolving power of a grating?
What is the difference between resolving power and dispersive power of a grating?
The two sodium lines appear as separate in the second order, but not in the first order, why?
Discuss the features of Fraunhofer diffraction pattern produced by a double slit.
What do you mean by limit of resolution?
Give the theory of a plane diffraction grating of the transmission type.
Does the resolving power depend on the number of ruling per centimetre on the grating?
Distinguish between Fresnel's and Fraunhofer's diffraction
What are half-period zones?
Show that the area of each zone is independent of number of zone.