Physics_Light

What is Light ?

• It is a source of energy

• Light falls as a single ray

• It travels in a straight line

• It do not allow us to see our surroundings

A plane mirror have a ________ surface.

• rough

• slippery

• plane

• slimy

Any polished or shiny surface can act as a ____________.

• frame

• lock

• fire

• mirror

An image formed on a screen.

• Virtual

• Real

• Screen

• Rough

__________ is the splitting of white light into seven colours.

• Dispersion

• Conversion

• Diversion

• Conservation

White light is composed of How many colours ?

• 8

• 14

• 2

• 7

What type of lens is used as magnifying glass ?

• Concave Lens

• Convex Lens

• Optical Lens

• Camera Lens

Image formed by a convex mirror is _______ , _______ and ________ than the object.

• erect

• inverted

• virtual

• smaller in size

Newtons disc appear white when __________.

• thrown

• rotated

• put in sunlight

• cut into pieces

What is the type of lens is shown in the figure?

• Concave

• Convex

• Meniscus

• Plano convex