Optics Quiz: Class 12
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Questions and Answers

What is the primary function of a convex lens?

  • To disperse light rays in different directions
  • To converge light rays to a focus point (correct)
  • To absorb all light that falls on it
  • To block the passage of light

    • Which of the following best describes the study of Optics?

  • The study of sound waves and their propagation
  • The study of how light behaves and interacts with various materials (correct)
  • The study of electricity and magnetism
  • The study of chemical reactions in living organisms

    • What happens to the speed of light when it passes from air into glass?

  • It becomes invisible
  • It remains the same
  • It decreases (correct)
  • It increases

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