Optics

Gap-fill exercise

  
Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
1. Can light travel in vaccum. (Yes / No)
2. The straight line path along which light travels is called of light.
3. Do the laws of reflection change, when we use a spherical mirror instead of a plane mirror. (Yes / No)
4. Convex mirror is in nature.
5. image formed by a concave mirror is always enlarged.
6. Is cornea transparent to light? (Yes / No)
7. shaped cells of retinal cells respond to brightness of light.
8. of an eye can be corrected using a cylindrical lens.
9. can be rectified using a convex lens.
10. The formula for linear magnification is same for convex and cancave mirrors. (True / False)