AP EAMCET · PHYSICS · Ray Optics
The radii of curvature of a double convex lens are and . If the refractive index of the material of the lens is , the focal length of the lens is nearly
- A
- B
- C
- D
Answer & Solution
Correct Answer
(D)
Step-by-step Solution
Detailed explanation
From Lens maker's formula, 1f=μ2μ1-11R1-1R2⇒1f=1.51-110.04-1-0.08⇒f=5.33 cm
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