Ray Optics and Optical Instruments

Magnifying power

Magnifying power, also known as angular magnification, is the ratio of the angle subtended by the image at the eye to the angle subtended by the objec

A compound microscope uses two convex

A compound microscope uses two convex lenses: the objective (short focal length, small aperture) and the eyepiece (short focal length, larger aperture

Telescopes are used to view distant

Telescopes are used to view distant objects. Refracting telescopes use lenses (objective and eyepiece), while reflecting telescopes use a concave mirr

Resolving power is the ability

Resolving power is the ability of an optical instrument to distinguish between two closely spaced objects. According to Rayleigh's criterion, two poin