Rectilinear Propagation of Light
Important Questions on Rectilinear Propagation of Light
What is a pinhole camera? Draw a neat and labelled diagram to show the formation of image of a lighted candle by it.

Name a simple application of the rectilinear propagation of light.

In which of the following two arrangements (a) and (b) shown in the diagram below, you can see the light of the bulb? Explain your answer.

Describe an experiment to show that light travels in a straight line path.

What do you mean by 'rectilinear propagation of light'?

Define a ray of light and a beam of light.

How can you obtain a point source of light?

Can a transparent medium form an image? Explain your answer.

What do we call a substance through which light passes? Give an example of such a substance.

Light travels in a _____ path.

A shadow is formed because light travels in a straight line path.

Light travels in a straight line path.

