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Refraction through a Lens — Physics STD 10 — Question

ICSE BoardEnglish MediumSTD 10PhysicsRefraction through a Lens1 Mark
MCQ
What are the correct differences between a convex and a concave lens?
  • A
    Convex lens is thin in the middle, and concave lens is thick in the middle.
  • ✓
    Convex lens converges the incident rays towards the principal axis, whereas concave lens diverges them.
  • C
    Convex lens has a virtual focus, and concave lens has a real focus.
  • D
    Convex lens converges the incident rays towards the principal axis, whereas concave lens diverges them.
✓

Answer

Correct option: B.
Convex lens converges the incident rays towards the principal axis, whereas concave lens diverges them.
(b)
Convex lens converges the incident rays towards the principal axis, whereas concave lens diverges them.
Explanation :
The intensity of refracted light is always less than that of incident light due to some light being reflected.

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