Question

(i) Sun is a ________ source while a book is a ______ source.
(ii) Light travels in a ________ line path with the speed ________ m/s.
(iii) The area of darkness when an opaque object blocks the light falling on it is called a
_________ .
(iv) A flat mirror is an example of a ________ reflecting surface.
(v) The bouncing off light from a surface is called ________ .​

Answer 1

Answer:

1. light , knowledge

2.straight

3. shadow

4.parallel

Answer 2

Answer:

1.solar , scholarly

2.straight line , 3.0 × 10⁸

3.shadow

4.

5.reflection