Concept explainers
The radius of curvature of the convex surface of a planoconvex lens.
Answer to Problem 68P
Solution:
The radius of curvature of the convex surface is .
Explanation of Solution
Given:
The plano-convex lens have Refractive index is and focal length is .
Formula used:
Lens maker’s formula
Where, is the focal length, is the radius of curvature of first surface and is radius of curvature (RoC)of second surface of the lens, positve when in the direction of optical path, otherwise negative. is the refractive index of the lens material.
Calculation:
For plane surface RoC is infinite.
Thus, ,
This gives,
Chapter 23 Solutions
Physics: Principles with Applications
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