Across
- 2. rarer medium medium in which speed of light is more
- 3. glass slab medium in which refraction takes place both at glass interface and air glass interface
- 7. focus of a diverging lens point from which a beam of light parallel to principal axis after refraction appears to diverge
- 8. medium the ratio of speed of light in vacuum to that in the medium is the refractive index of__________
- 10. of light the phenomenon of bending of light as it passes from one medium to another
Down
- 1. of the object ratio of height of image and the height of object
- 4. SI unit of power of lens
- 5. a transparent material bound by two surface of which one or both the surfaces are spherical
- 6. the size of image formed by concave lens when object is between infinity and optical centre o of the lens
- 9. the capacity of a lens to converge/diverge rays falling o it