Physics
Related Questions
Write true or false for each statement:
(a) The image formed by a plane mirror is real.
(b) When a light ray is reflected from a wall, the angle of incidence is not equal to the angle of reflection.
(c) The image of the right hand in a plane mirror looks like that of a left hand.
(d) The image formed by a plane mirror is upright.
(e) The image formed by a plane mirror can be obtained on a screen.
(f) The objects around us are seen due to irregular reflection of light.
(g) The speed of light in vacuum is 3 x 108 m s-1.
(h) A rose appears red in light of all the colours.
(i) A black paper absorbs light of all the colours and reflects none.
(j) The primary colours are red, blue and green.
Match the following:
Column A Column B (a) A light ray passes from air to glass (i) speeds up (b) A light ray passes from glass to water (ii) reflects red light (c) Virtual image (iii) secondary colours (d) Red rose (iv) plane mirror (e) Yellow, cyan and magenta (v) slows down How is a plane mirror made?
State the two laws of reflection of light.