Advertisements
Advertisements
Question
The focal length of a convex lens is 25 cm. What is its power?
Numerical
Advertisements
Solution
Given, f = 25 cm
Power of a lens is given by:
Power (p)=1/f
`p=1/(25xx10^-2)=100/25=4.D`
shaalaa.com
Is there an error in this question or solution?
