Physics, asked by poojashindhemss88, 8 months ago

A concave lens of focal length 20cm is placed in contanct with a concave lems of focal length 10cm what is the focal lengthvand powet of the combination?

Answers

Answered by anshvats099

Answer:

Explanation:

Given f = - 20 cm, (sign convention) , v = - 10 cm

(∴ image formed by concave lens is virtual)

By using lens formula,

or u = - 20

Thus the object is placed at 20 cm from the concave lens

Answered by itsurfrndbarani

Answer:

35 CM

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