Q. The focal length of convex lens is

  • (A) the same for all colours
  • (B) shorter for blue light than for red
  • (C) shorter for red light than for blue
  • (D) maximum for yellow light
✅ Correct Answer: (B) shorter for blue light than for red

Published by Priyanka Tomar ⭐ 35.28K Points at 25-Sep-2020 03:37 pm in Science

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