redrat177Lv1
15 Jan 2022
Problem 87b
Page 677
Section: General Problems
Chapter 21: Electromagnetic Induction and Faraday’s Law
Textbook ExpertVerified Tutor
15 Jan 2022
Given information
Given that two lenses are kept in contact having power and .
Step-by-step explanation
Step 1.
As we know that
the power of a lens is given as
---------------------------(1)
and we know that if two lenses are kept in contact having the focal length as and , then the combined focal length is given by,
---------------------------(2)
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