_________ object absorbs all colours
White
Black
Red
Orange
Seven colours painted in the same order and proportion of Spectrum is called.
Colour disc
Colour band
Rise
Band
Which colour of Sunlight is not required in photosynthesis
Green
Blue
The arrangement of mirror inside a rectangular tube
Periscope
Telescope
Radio scope
Endoscope
Reflector of a torch is a __________ mirror
Concave
Convex
Plane
None of these
Colour of an object is the __________ colour.
Absorbed
Adapted
Reflected
All of these
__________ colour is produced by the combination of 7 natural colours.
Lyan
Magenta
Which mirror is used as rear view mirror in caves
The point at which the light rays fall is called point of ________
Incidence
Reflection
Retraction
Mirror that always forms Virtual image
Both a) and b)
