The acronym for Light Amplification by Stimulate Emission of Radiation.
LASER
GAESR
AMPS
None of these
Light travels in __________line
Straight
Curved
Jack lined
The colour of an object that absorbs all the colour is ________.
Green
Black
White
Yellow
Image that cannot be formed on a screen
Real
Stringed
Erect
Virtual
The Mirror on which the reflecting surface is curved outward
Concave
Plane
Convex
There are _________ colours in a rainbow
4
5
6
7
The point at which the light rays fall is called point of ________
Incidence
Reflection
Retraction
The Angle of incidence is _________ angle of reflection.
Greater than
Equal to
Less than
Not equal
Which colour of Sunlight is not required in photosynthesis
Red
Blue
Orange
