Question

Replace the following phrases with one or two words.
(a) an object that does not allow any light to pass through it
(b) a dark region formed when rays of light are blocked by an opaque object
(c) the bouncing back of rays of light when they fall on a surface
(d) when right and left interchange places
(e) a non-luminous object that reflects light from the sun

Answer 1

(a) Opaque object does not allow any light to pass through it.

(b) Shadow is a dark region formed when rays of light are blocked by an opaque object.

(c) Reflection is the bouncing back of rays of light when they fall on a surface.

(d) Lateral inversion occurs when right and left interchange places.

(e) Moon is a non-luminous object that reflects light from the sun.