- Trending Categories
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
If the power of the lenses is +0.5D, find the focal length of lenses.
Given: the power of the lens is +0.5D
To find: the focal length of lens
Solution:
We know, power of a lens = $\frac{1}{f}$
Here $f$ is focal length taken in metres.
So,
0.5 = $\frac{1}{f}$
$f = 2 \ metre $
So, focal length of the lens is 2 metre.
Advertisements