Physics, asked by Titli6398, 10 months ago

What is the focal length of combination of lenses having powers +2.5d and -3.75d?

Answers

Answered by nidhiakara

1

Answer:

Explanation: Peff = p1 +p2

=2.5 -3.75 = - 1.25

f = 1/p = -4/5 m= - 80 cm

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