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  4. A concave lens and a convex lens have same focal length of 20 cm and both put in contact with combination is used to view an object 5 cm long kept at 20 cm from the lens combination. As compared to object the image will be.

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Q. A concave lens and a convex lens have same focal length of $20$ cm and both put in contact with combination is used to view an object $5$ cm long kept at $20$ cm from the lens combination. As compared to object the image will be.

UP CPMTUP CPMT 2004

Solution:

Correct answer is (c) of the same size and erect