Question
Write the expression for the power of a number of lenses placed in contact with each other.
Solution
Power of a lens combination:
Let, there be n number of lenses with powers
P1, P2, P3, ..........
placed in contact with each other.
Then,
Net power (P) of the combination is equal to the algebraic sum of their individual powers.
Thus,
Net power, P = P1 + P2 + P3 + .......+ Pn
Let, there be n number of lenses with powers
P1, P2, P3, ..........
placed in contact with each other.
Then,
Net power (P) of the combination is equal to the algebraic sum of their individual powers.
Thus,
Net power, P = P1 + P2 + P3 + .......+ Pn
