Sample PAPER-5

PHYSICAL SCIENCE

HUMAN EYE AND COLOURFUL WORLD

I.ANSWER THE FOLLOWING QUESTIONS

1. WHAT IS THE LEAST DISTANCE OF DISTANCE VISION?

2. WHAT IS THE ANGLE OF VISION?

3. WHAT IS THE POWER OF LENS?

4. DEFINE DISPERSION?

5. DEFINE SCATTERING?

II.ANSWER THE FOLLOWING QUESTIONS

6. HOW DO YOU CORRECT EYE DEFECT MYOPIA?

7. HOW DO YOU CORRECT EYE DEFECT HYPERMETROPIA?

8. HOW DO YOU FIND THE REFRACTIVE INDEX OF PRISM EXPERIMENTALLY?

9. WRITE AN ACTIVITY TO FORM A RAINBOW?

10. WHAT IS THE REASON FOR BLUE COLOUR OF SKY AND WHITE COLOUR OF SKY? EXPLAIN?

ALL THE BEST