Two point white dots are $$1$$ $$mm$$ apart on a black paper. They are viewed by eye of pupil diameter $$3$$ $$mm.$$ Approximately, what is the maximum distance at which these dots can be resolved by the eye? [ Take wavelength of light $$=500$$ $$nm$$ ]

The maximum number of possible interference maxima for slit-separation equal to twice the wavelength in Young's double-slit experiment, is :

The angle of incidence at which reflected light is totally polarized for reflection from air to glass (refractive index $$n$$) is :

To demonstrate the phenomenon of interference, we require two sources which emit radiation