Lenses Prelab Assignment
4-digit Code Number:_______________________________
- Describe a quick way to tell a converging lens from a diverging lens
with no equipment.
- Derive the formula for error in the focal length:
do) / do2 +
di) / di2
from the lens grinder's equation.
- Describe in detail the two methods for determining the focal length of
a diverging lens which are used in this lab.
- What is a third method for determining the focal length of a diverging
lens which is not used in this lab?
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