Ray Optics and ...

The image which can be obtained on a screen is called

The image which can not be taken on the screen is called

The magnifying power of a simple microscope can be increased if we use an eyepiece of

Lateral displacement of the emergent ray of light increases with

As our eyes can not retrace the bent path of light, a stick, dipped in water, appears

Whenever light travels from denser medium to a rarer medium:

Assertion: A concave mirror and convex lens both have the same focal length in air. When they are submerged in water, they will have same focal length.
Reason: The refractive index of water is smaller than the refractive index of air.

A real image is formed by

The perpendicular distance between the original path of the incident ray and the convergent ray of light coming out of a glass slab is called :

When the reflecting or refracting rays do not actually intersect but appear to intersect when produced backwards,