Questions
A lens forms a virtual image 4 cm away from it when an object is placed l0 cm away from it. The lens is a .....lens of focal length .....
detailed solution
Correct option is A
1f=1v-1u1f=1−4−1−10 or1f=110−14 or 1f=2−520=−320 orf=−203 cm=−6.67 cmThe negative sign indicates that the lens is concave.Talk 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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