interefrence of light-optics

Tranmission of light in optical fibre is due to

When the speed of light slows down in a medium, that medium is said to be optically ...................... (rarer/denser).

If the optic axis of convex and concave lenses are separated by a distance 5 mm as shown in the figure. Find the coordinate of the final image formed by the combination if parallel beam of light is incident on lens. Origin is at the optical centre of convex lens

STATEMENT-1 : A photodiode is used in receivers in optical communication STATEMENT-2 The photodiode has a resistance that varies according to intensity of light incident on it

What is the function of the optic nerve?

A: Ray optics assumes that light travels in a straight line which is disapproved by diffraction effects, yet the ray optics assumption is so commonly used in understanding location and several other properties of images in optical instruments. R: Typical sizes of apertures involved in ordinary optical instruments are much larger than the wavelength of light.

The ratio between the velocity of light in a given optical medium to the velocity of light in vacuum is called refractive index.

A light ray hits the pole of a thin biconvex lens as shown in fig. The angle made by the emergent ray with the optic axis will be approximately

When a light wave in a rarer medium is reflected from the surface of an optically denser medium, it suffers a phase change of (in radian)

When a transparent parallel plate of uniform thickness t and refractive index mu is interposed normally in the path of a beam of light, the optical path is