Wave Optics Tes...

Which of the following phenomenon can explain quantum nature of light

In Young's double experiment, the distance between the slits is reduced to half and the distance between the slit and screen is doubles, then the fringe width

If $$L$$ is the coherent length and $$c$$ the velocity of light, the coherent time is

A star moves away from earth at speed $$0.8\ c$$ while emitting light of frequency $$6\times 10^{14}Hz$$. What frequency will be observed on the earth (in units of $$10\ Hz$$)( $$c=$$ speed of light)

The wave front due to a source situated at infinity is :

In Young's double slit experiment, the two equally bright slits are coherent, but of phase difference $$\dfrac{\pi }{3}$$. If maximum intensity on the screen is $$I_{o}$$, the intensity at the point on the screen equidistant from the slits is:

The diameter of the objective of a telescope is $$a$$, its magnifying power is $$m$$ and wavelength of light $$\lambda $$ . The resolving power of the telescope is :

If one of the two slits of a Young's double slit experiment is painted over so that it transmits half the light intensity of the other, then:

The wave fronts of light wave traveling in vacuum are given by $$x+y+z=c$$ . The angle made by the light ray with the x-axis is:

In Young's double slit experiment, first slit has width four times the width of the second slit. The ratio of the maximum intensity to the minimum intensity in the interference fringe system is: