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Laws of Reflection

A plano-conve...

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A plano-convex lens of refractive index 1.5 and radius of curvature 30 cm is silvered at the curved surface. Now, this lens has been used to form the image of an object. At what dis†an ce from this lens, an object be placed in order to have a real image of the size as that of the objec

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Q. A plano convex lens of refractive index 1.5 and radius of curvature 30 cm is silvered at the curved surface. Now this lens has been used to from the image of an object. At what distance from this lens an object be placed in order to have a real image of the size of the object :

Q. A plano – convex lens of refractive index 1.5 and radius of curvature 30cm is silvered at the curved surface. Now this lens is used to form the image of an object. At what distance from this lens, an object be placed in order to have a real image of the size of the object?

Q. A plano-convex lens of focal length 20 cm has its plane side silvered:

Q. A bi-convex lens is formed with two 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 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

Q. One surface of a biconvex lens having focal length

40 cm

is silvered. The radius of the curvature of the other surface is

60 cm

. At what distance the silvered lens should an object be placed to obtain a real image magnified three times ?

(Refractive index of lens, μL=1.5)

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