Question

Explain the power of a combination ​

Answer 1

Explanation:

When a number of thin lenses are placed in contact with one another, the power of the combination is equal to algebraic sum of the powers of individual lenses.

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Answer 2

Answer:

Power of combination of lenses : The focal length of the combination of two lenses placed in contact is given by the relation. Thus the power of combination of lenses is the algebraic sum of the powers of individual lenses.