Questions
Image of an object at infinity is formed by a convex lens of focal length 30 cm such that the size of the image is 2 cm. If a concave lens of focal length 20 cm is placed in between the convex lens and the image, at a distance 26 cm from the convex lens, size of the new image is
detailed solution
Correct option is A
u = 4 cmFirst image will act as an object for second lens u = - 4 cm for concave lens1u+1v=1f ; -14+1v=-1f, V=5 cm m=IO=vu ; I=0vu=254=2.5 cmTalk to our academic expert!
Similar Questions
Image of the sun is formed by a binconvex lens of focal length f. The image is a circular patch of radius r and is formed on the focal plane of the lens. Choose the correct statement from the following
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