Questions
A double convex lens of refractive index 1.5 has radii of 20 cm. Incident rays of light parallel to the axis will come to converge at a distance from the lens is
detailed solution
Correct option is A
μ=1.5, R=20 cm ; f=R2μ-1=20 cm 1f=1u+1v ; f=20 cm Here u=∞ ∴1f=1v ; V=20 cmTalk to our academic expert!
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