Rectilinear Propagation of Light

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

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

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3. Define virtual images?

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

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

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

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

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

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

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

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

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

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

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14. Reflection is the bouncing off of light?

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

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16. The Greek name for a partial shadow (shade) is?

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

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

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19. The path along which light energy travels is?

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20. 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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21. A collection of rays of light is?

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

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

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

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

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

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27. Mention the two types of reflection?

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

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

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

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

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

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

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

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36. Define Magnification

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

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

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

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

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

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