Q.1. What is angle of incidence?
Q.2. Which part of the eye gives it its distinctive color?
Q.3. What are rods and cones in the retina of an eye?
Q.4. Explain why, an owl can see well in the night but not during the day whereas an eagle can see well during day but not in the night.
Q.5. Mention against each of the following whether regular or diffused reflection will take place when a beam of light strikes. Justify your answer in each case.
(a) Polished wooden table
(b) Chalk powder
(c) Cardboard surface
(d) Marble floor with water spread over it
(e) Mirror
(f) Piece of paper
Q.6. What are the main parts of the human eye?
Q.7. A ray of light is incident on a plane mirror at an angle of 40°. What is the angle of reflection?
Q.8. How do we see a moving picture or a movie?
Q.9. How does eye adjust itself to deal with light of varying intensity?
Q.10. What are the functions of the following parts of the eye?
Iris, Eye-lens, Retina and Optic nerve
Q.11. Describe the construction of a kaleidoscope.
Q.12. What type of reflection of light takes place from a rough surface?
Q.13. What is an 'incident ray'?
Q.14. How many mirrors are there in a periscope?
Q.15. What is meant by dispersion of light'? Name a natural phenomenon showing dispersion.
You can find Worksheets Solutions here: Worksheet Solutions: Light
90 videos|273 docs|44 tests
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1. What is light and how is it produced? |
2. How does light travel and what is its speed? |
3. What are the different colors of light and how are they produced? |
4. What is the electromagnetic spectrum and how is light classified within it? |
5. How does light interact with objects and what are the different types of interactions? |
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