LIGHT AND OPTICS

straight line

horizontal line only

vertical line only

none of the above

plane mirror

virtual mirror

cpncave mirror

convex mirror

plane mirror makes a room look spacious

concave mirror used to see all corners of a shop

convex mirror used by dentist

concave mirror used to produce spectrum

The angle of incidence is the same as reflected angle

White light consists of seven components of colour

Sky appears blue because of scattering of light

Shadow is formed because of the refraction of light

Periscope uses the refraction of light

Sky appears blue in midday because blue light is scattered the most

Image formed by plane mirror is virtual

Image formed by convex mirror is real

Refraction does not occur when incident ray is parallel to the normal