Two different type of lenses are placed on a sheet of newspaper. How will you identify them without touching?

AcademicPhysicsNCERTClass 7

When two lenses are placed on a newspaper sheet then we can identify the lenses without touching them by the letters of the newspaper. 

  • If the letters appear to be bigger or magnified, it is a convex lens.
  • If the letters appear to be smaller, it is a concave lens.
raja
Updated on 10-Oct-2022 13:30:11

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