Question

A convex lens makes enlarged and erect image of an object. According to sign
convention which of the following measurements are considered as negative
measurements?
a) u and v
b) v and f
c) size of the object and size of the image
d) u and f​

Answer 1

Explanation:

u is always negative for any lens

v also negative.

option 1

Answer 2

Answer:

Your answer is a) u and v

Explanation:

It is bcoz u= always negetive

and v=negetive (in the above case) bcoz the image is virtual i.e. on the left side of the mirror and according to sign convention it will be negetive.

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