A person finds difficulty in viewing distant objects, while the nearby objects are clearly visible to him. Which type of lens should he use in his spectacles?

Science Quiz / Puzzle

Down

1. The spreading of light rays

2. These types of images are not obtained on the screen

3. These are rear view mirrors

Across

4. Mirrors make image by this phenomenon

5. The nature of image of the sun obtained on paper

6. The band of seven colours of white light