4 questions · timed · auto-graded
| i | Mirror | (a) | Used by dentists to see enlarged image of teeth. |
| ii | Virtual image | (b) | Can be taken on a screen. |
| iii | Real image | (c) | Cannot be taken on a screen. |
| iv | Convex mirror | (d) | An optical device which produces reflection. |
| v | Concave mirror | (e) | Can form image of objects speed over a larger area |
| i | The ray that enters the transparent medium | (a) | Violet |
| ii | The ray that comes out from a transparent medium into air | (b) | 0^(@) |
| iii | Speed of light in vacuum | (c) | Emergent ray |
| iv | The angle of incidence for normal incidence | (d) | Incident ray |
| v | The colour that deviates the most | (e) | $3\times10^{8}m/s$ |
| i | Real image | (a) | Distance between pole and centre of curvature. |
| ii | Virtual image | (b) | Centre of the sphere of which the mirror is a part. |
| iii | Focus | (c) | Line passing through the pole and focus. |
| iv | Principal axis | (d) | Erect |
| v | Centre of curvature | (e) | Inverted |
| Convex mirror | Radio telescopes |
| Parobolic mirror | Rear – view mirror |
| Snell’s law | Kaleidoscope |
| Dispersion of light | sin i/sin r =μ |
| Refractive index | Rainbow |
| Convex mirror | Rear – view mirror |
| Parobolic mirror | Radio telescopes |
| Snell’s law | sin i/sin r =μ |
| Dispersion of light | Rainbow |
| Refractive index | Kaleidoscope |