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AP and TS EAMCET Engineering Model Paper 17

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Question : 102

Total: 160

A point object is placed at a distance of 25 cm from a convex lens of focal length 20 cm. A glass slab of thickness t and refractive index 1.5 is inserted between the lens and the object so that image is formed at infinity. The thickness t is

10 cm
5 cm
20 cm
15 cm

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