AP EAMCET · PHYSICS · Ray Optics
An object is placed \(0.1 \mathrm{~m}\) infront of a convex lens of focal length \(20 \mathrm{~cm}\) made of a material of refractive index 1.5. The surface of the lens away from the object is silvered. If the radius of curvature of the silvered surface is \(22 \mathrm{~cm}\), then the distance of the final image from the silvered surface is
- A \(10 \mathrm{~cm}\)
- B \(11 \mathrm{~cm}\)
- C \(12 \mathrm{~cm}\)
- D \(13 \mathrm{~cm}\)
Answer & Solution
Correct Answer
(B) \(11 \mathrm{~cm}\)
Step-by-step Solution
Detailed explanation
Given, focal length of convex lens, \(f=20 \mathrm{~cm}\) object distance, \(u=-0.1 \mathrm{~m}=-10 \mathrm{~cm}\) refractive index of material, \(\mu=1.5\) radius of curvature of silvered surface, \(R=22 \mathrm{~cm}\) and focal length of concave mirror,…
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