Available Answers

1. 1.

   Name the organ in our body that perceives light energy.

2. 2.

   What do you mean by living light? Give two examples.

3. 3.

   What are luminous and non-luminous objects? Give two examples for each.

4. 4.

   What do you understand by convergent and divergent beams of light?

5. 5.

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

6. 6.

   What do you mean by regular reflection of light and irregular reflection of light?