Physics · Light - Reflection and Refraction
The principal focus of a convex lens is defined as ________.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1the point that always lies at infinity
- 2the point behind the lens where light rays diverge
- 3the point from which diverging rays appear to meet before refraction
- 4the point on the principal axis where parallel rays converge after refraction✓
Correct answer
the point on the principal axis where parallel rays converge after refraction
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