Across
- 3. density : It is the ability of a medium to reflect light
- 4. focus : Parallel rays of lights are reflected by a concave mirror to a point called
- 6. : The bouncing back of light after striking a surface
- 8. : All the distances are measured from the...... of a spherical mirror
- 9. inversion : Phenomenon in which the right side of an object appears to be the left side of the image
- 12. ray : It is parallel to the direction of incident ray in case of a rectangular glass slab
- 15. of lens : It is the ability of a lens to converge or diverge light rays
- 16. : Its speed is different in different media
- 18. : The speed of light is different in different
- 19. : The S.I unit of power of a lens
Down
- 1. : The power of a convex lens
- 2. : A type of line in which light travels
- 5. : Mirror used in motor cars
- 7. : It is produced in the ratio of height of the image to the height of the object
- 8. : Mirror required for obtaining a virtual image
- 10. medium : In this medium the speed of light is higher
- 11. : Mirror used by dentist
- 13. : Phenomenon of change in the direction of light
- 14. length : It is the distance between the Pole and the principal focus of a spherical mirror
- 17. index : It is the ratio of speed of speed of light in vacuum to that in the medium of transparent medium