Physics-
General
Easy
Question
A point object is placed at a distance of 20cm from a thin plano convex lens of focal length 15 cm The plane surface of the lens is now silvered The image fomed by the system is at.....
- 60 cm to the left of the system
- 60 cm to the right of the system
- 12 cm to the left of the system
- 12 cm to the right of the system
The correct answer is: 12 cm to the left of the system
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A bi-convex lens is formed with two thin plano-convex lenses as shown in the figure Refractive index n of the first lens is 1.5 and that of the second lens is 1.2 Both the curved surfaces are of the same radius of curvature R = 14 cm For this bi-convex lens, for an object distance of 40 cm the image distance will be:
A bi-convex lens is formed with two thin plano-convex lenses as shown in the figure Refractive index n of the first lens is 1.5 and that of the second lens is 1.2 Both the curved surfaces are of the same radius of curvature R = 14 cm For this bi-convex lens, for an object distance of 40 cm the image distance will be:
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