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Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 2 > Chapter 18 - Refraction at Spherical Surfaces > A concave lens and a convex lens have same focal length of 20cm and both put in contact this combination is used to view an object 5cm long kept at 20cm from the lens combination. As compared to object the image will be

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

A convex lens of glass has power P in air. If it is immersed in water its power will be