What is the power of combination of lenses- - Q-A

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Physics

Lens Formula

What is the p...

Question

What is the power of a combination of lenses?

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Solution

Power of lens:
The power of a lens combination is the algebraic sum of the powers of the individual lenses.
The combined power of the lens is written as $P = P_{1} + P_{2}$ . Here, $P_{1}$ is the Power of lens $1$ and $P_{2}$ is the power of lens $2$ .

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(a) What do you understand by the power of a lens? Name one factor on which the power of a lens depends.

(b) What is the unit of power of a lens? Define the unit of power of a lens.

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(b) What is the power of lens A and lens B?
(c) What is the power of combination if lenses A and B are held close together?

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What is the power of a combination of lenses?

Power of lens:The power of a lens combination is the algebraic sum of the powers of the individual lenses.The combined power of the lens is written as P=P1+P2. Here, P1 is the Power of lens 1 and P2 is the power of lens 2.

Power of lens:
The power of a lens combination is the algebraic sum of the powers of the individual lenses.
The combined power of the lens is written as $P = P_{1} + P_{2}$ . Here, $P_{1}$ is the Power of lens $1$ and $P_{2}$ is the power of lens $2$ .