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Refraction through a Lens — Physics STD 10 — Question

ICSE BoardEnglish MediumSTD 10PhysicsRefraction through a Lens1 Mark
MCQ
Which statement is incorrect?
  • A
    Both convexo-concave and concavo-convex lenses have one surface concave and the other surface convex.
  • ✓
    A convexo-concave lens is thicker in the middle and has a converging action.
  • C
    A concavo-convex lens is thicker in the middle and has a converging action.
  • D
    A convexo-concave lens is thinner in the middle and has a diverging action.
✓

Answer

Correct option: B.
A convexo-concave lens is thicker in the middle and has a converging action.
(b)
A convexo-concave lens is thicker in the middle and has a converging action.
Explanation:
Contrary to the statement, a convexo-concave lens is thinner in the middle and diverges light.

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