## Power of Lens Solution

STEP 0: Pre-Calculation Summary
Formula Used
Power of First Lens = 1/Focal Length 1
P1 = 1/f1
This formula uses 2 Variables
Variables Used
Power of First Lens - Power of First Lens we define power of lens as the reciprocal of the focal length of the lens used.
Focal Length 1 - (Measured in Meter) - Focal Length 1 is the focal length of lens 1.
STEP 1: Convert Input(s) to Base Unit
Focal Length 1: 0.4 Meter --> 0.4 Meter No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
P1 = 1/f1 --> 1/0.4
Evaluating ... ...
P1 = 2.5
STEP 3: Convert Result to Output's Unit
2.5 --> No Conversion Required
2.5 <-- Power of First Lens
(Calculation completed in 00.004 seconds)
You are here -
Home »

## Credits

Created by Anirudh Singh
National Institute of Technology (NIT), Jamshedpur
Anirudh Singh has created this Calculator and 300+ more calculators!
Verified by Team Softusvista
Softusvista Office (Pune), India
Team Softusvista has verified this Calculator and 1100+ more calculators!

## < 8 Basics of Optics Calculators

Power of Lens using Distance Rule
Power of Lens = Power of First Lens+Power of Second Lens-Width of Lens*Power of First Lens*Power of Second Lens
Angle of Deviation
Angle of Deviation = Angle of Incidence+Angle of Emergence-Angle of Prism
Angle of Emergence
Angle of Emergence = Angle of Prism+Angle of Deviation-Angle of Incidence
Angle of Incidence
Angle of Incidence = Angle of Deviation+Angle of Prism-Angle of Emergence
Angle of Prism
Angle of Prism = Angle of Incidence+Angle of Emergence-Angle of Deviation
Angle of Deviation in Dispersion
Angle of Deviation = (Coefficient of Refraction-1)*Angle of Prism
Number of Images in Kaleidoscope
Number of Images = ((2*pi)/Angle between Mirrors)-1
Power of Lens
Power of First Lens = 1/Focal Length 1

## Power of Lens Formula

Power of First Lens = 1/Focal Length 1
P1 = 1/f1

## What is Power?

The power of a lens is defined as the reciprocal of the focal length. Lens power is measured in dioptre (D). Converging (convex ) lenses have positive focal lengths, so they also have positive power values. Diverging (concave ) lenses have negative focal lengths, so they also have negative power values.

## How to Calculate Power of Lens?

Power of Lens calculator uses Power of First Lens = 1/Focal Length 1 to calculate the Power of First Lens, Power of Lens is the reciprocal of the focal length of the lens , where D is the power in diopters and f is the focal length in meters. Lens surface power can be found with the index of refraction and radius of curvature. Power of First Lens is denoted by P1 symbol.

How to calculate Power of Lens using this online calculator? To use this online calculator for Power of Lens, enter Focal Length 1 (f1) and hit the calculate button. Here is how the Power of Lens calculation can be explained with given input values -> 2.5 = 1/0.4.

### FAQ

What is Power of Lens?
Power of Lens is the reciprocal of the focal length of the lens , where D is the power in diopters and f is the focal length in meters. Lens surface power can be found with the index of refraction and radius of curvature and is represented as P1 = 1/f1 or Power of First Lens = 1/Focal Length 1. Focal Length 1 is the focal length of lens 1.
How to calculate Power of Lens?
Power of Lens is the reciprocal of the focal length of the lens , where D is the power in diopters and f is the focal length in meters. Lens surface power can be found with the index of refraction and radius of curvature is calculated using Power of First Lens = 1/Focal Length 1. To calculate Power of Lens, you need Focal Length 1 (f1). With our tool, you need to enter the respective value for Focal Length 1 and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
Let Others Know