17 Light Energy

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Across
  1. 2. Change in direction of light ray.
  2. 6. Distance between pole and centre of curvature.
  3. 8. Ratio of speed of light in air to that in a medium.
  4. 10. Bigger than the object in size.
  5. 12. Smaller than the object in size.
  6. 13. Ray that falls on a reflecting surface.
  7. 14. Image that cannot be obtained on a screen.
Down
  1. 1. Measure of how much a spherical mirror is curved.
  2. 2. Splitting of white light into its constituent colours.
  3. 3. Nature of real images formed by concave mirror.
  4. 4. Ray that passes straight without bending.
  5. 5. Straight line passing through pole and centre of curvature.
  6. 7. Ray that bounces back from a mirror.
  7. 9. Mirror that forms part of a hollow sphere.
  8. 11. Substance through which light travels.