1.
A plane wavefront is incident on a concave mirror of radius of curvature R. The radius of the refracted wavefront will be-
2.
The correct curve between fringe width β and distance between the slits d in YDSE is-
3.
The phenomenon of diffraction can be treated as interference phenomenon if the number of coherent sources is-
5.
According to Huygen's principle, the amplitude of secondary wavelets is-
6.
In a Young's double slit experiment, the fringe width is found to be β. If the entire apparatus is immersed in a liquid of refractive index µ, the new fringe width will be-
10.
Two sources of light are said to be coherent, when they give light waves of same-
