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3.The figure ...

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3.The figure shows a silvered lens .Ua=1.6 and Ub= 1.2, R1=80cm ,R2=40cm and R3=20cm. An object is placed at a distance of 12cm from this lens.find the image distance.

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Q. The figure shows a silvered lens.

μ_{A} = 1.6

μ_{B} = 1.2

R_{1} = 80

R_{2} = 40

R_{3} = 20

cm. An object is placed at a distance of

12

cm from this lens. Find the image position.

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?

One of the surfaces of thin convex lens of focal length 12 cm is silvered and a object is placed at 12 cm in front of lens as shown in figure. If refractive index of lens is 1.5, then distance of image from lens in cm is

Q. Flat surface of a plano-convex lens of focal length 20 cm is silvered. If object is placed at 60 cm from lens then distance of image from lens is

A 3 cm high object is placed at a distance of 80 cm from a concave lens of focal length 20 cm. Find the position and size of the image.

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