Question

state any two observations from every day life which shows that light travel in a straight lines

Answer 1

1. when it is dark in the cinema and the light coming from the projector travelles in straight lines.

2. sunlight coming in a dark room from an open window also travelles in straight lines

Answer 2

Answer:

The two observations are:

1)The beams of light from the headlights of car, scooter, buses, trucks, aeroplanes, and engines of train go straight in the darkness of night showing that light travels in a straight line path.

2)The straight beams of light coming out from the searchlights of airport tower tell us that light travels in a straight line path.

Hope it helps