List of top Physics Questions on Refraction of Light asked in AP EAPCET

A light ray is incident from a medium of refractive index \(2\) into a medium of refractive index \(\sqrt{3}\). The critical angle is

A ray of light is incident at \(30^\circ\) from a medium of refractive index \(2\) into a medium of refractive index \(1\). Then the angle of refraction is:

A needle is lying at the bottom of a water tank of height \(12\,\text{cm}\). The apparent depth of the needle measured by a microscope is \(9\,\text{cm}\). If the water is replaced by a liquid of refractive index \(1.5\) of same height, the distance through which the microscope has to be moved to focus the needle again is