# Rectilinear Propagation of Light

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2. Reflection is the bouncing off of light?

Question 2 of 41

3. Luminous (incandescent) sources are objects which produce its own light?

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4. A collection of rays of light is?

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5. What is the name for a dark shade (shadow) in Greek?

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6. The angle of reflection is the angle between the reflected ray and the normal:

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7. Images formed when you stand next to a plane mirror are called?

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8. Which of the following is the formula to get the number of images by two plane mirrors parallel to each other?

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9. Which of the following is not an application of plane mirrors?

Question 9 of 41

10. The ray of light that travels from the source to the reflecting surface is?

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11. The path along which light energy travels is?

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12. What happens if a beam of light meets an opaque object?

Question 12 of 41

13. Objects which do not allow light to pass through them at all are called?

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14. The ray of light that bounces from the reflecting surface is called?

Question 14 of 41

15. Define Magnification

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16. Name the types of mirrors used in reflection of Light?

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17. Objects which DO allow SOME light to pass through them BUT we cannot see through them are referred to as?

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18. Which of the following are the 2 laws of reflection?

Question 18 of 41

19. Which of the following is not a type of beam of light?

Question 19 of 41

20. Which of the following statements is INCORRECT about parallax?

Question 20 of 41

21. When light from a source falls on an opaque object i.e. a book, a shadow of the book is formed with sharp edges. What does this suggest?

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22. What is the name of the property of light which ascertains that light travels in a straight line?

Question 22 of 41

23. Which of the following is a Non-luminous source?

Question 23 of 41

24. In the morning during a sunrise, give the exact name of sunlight that breaks through the clouds or leaves?

Question 24 of 41

25. Parallax is the relative motion of two objects due to the movement of the observer?

Question 25 of 41

26. Which of the following is the formula to get the number of images by a plane mirror which is inclined at a certain angle?

Question 26 of 41

27. Which of the following statements does NOT describe the principles of images formed by a plane mirror?

Question 27 of 41

28. A Beam of light which appears to have rays that are perfectly parallel is called?

Question 28 of 41

29. Reflection of parallel ray of lights on a very smooth polished surface is called?

Question 29 of 41

30. A Beam of light which appears to spread out is said to be?

Question 30 of 41

31. Which of the following statements describe the difference between Umbra and penumbra?

Question 31 of 41

32. Non-luminous sources do not produce light of their own but are seen when light from a luminous source reflects on them?

Question 32 of 41

33. The angle of incidence is the angle between the incident ray and the normal:

Question 33 of 41

34. The amount of light energy reflected by a body depends on the nature of the surface of the body (smooth or rough)?

Question 34 of 41

35. Mention the two types of reflection?

Question 35 of 41

36. Which of the following is NOT a definition of magnification

Question 36 of 41

37. Define virtual images?

Question 37 of 41

38. Reflection of parallel ray of lights on a rough surface is?

Question 38 of 41

39. Objects which allow light to pass through them are said to be?

Question 39 of 41

40. WHICH LAW BEST describes the observation when you rotate a mirror throughout an angle while the incident ray remains constant?

Question 40 of 41

41. A Beam of light which appears to collect at point is referred to as being?

Question 41 of 41