Physics, asked by sia84, 10 months ago

an object 40 cm from a lens ,forms an image also at 40 cm from the object but on the opposite side.find the focal length of the lens and the type of lens.

Answers

Answered by neelamtiwari7448

4

Answer:

u (object distance) is always -ve in all lens or mirror....but f (focal length) is -ve in CONCAVE MIRROR ...

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Answered by shalijauppari

2

Explanation:

please brainlest answer me

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