- #1
jst81161
- 10
- 0
Homework Statement
a focal length of 7.3cm for a double concave lens, find the index of refraction using lensmaker law and the radius which can be found using the following equations.
Homework Equations
focal length is 7.3 find radius focal length x 2=radius. Lens maker formula
1/f=(n-1)(1/R1-1/R2)
The Attempt at a Solution
I got 2 for the index of refraction