Across
- 5. The unit of power of lens is
- 6. The colored light that refracts most while passing through a prism is
- 7. Which is the most popular kitchen fuel in India?
- 9. What is the SI unit of Electric Current.
- 11. The optical phenomena, twinkling of stars, is due to
- 12. A ray travelling towards the mirror is the __________.
Down
- 1. The hindrance presented by material of conductor to the smooth passing of electric current is known as:
- 2. Which instrument is used for measuring electric potential?
- 3. The Chief constituent of Bio gas is
- 4. What is the ultimate source of Energy for us ?
- 8. The part of the eyes refracts light entering the eye from external objects?
- 10. The amount of light entering the human eye is controlled by