Engineering

How to Calculate and Solve for Reflectivity of 2 media | Optical Properties

Last Updated on July 17, 2022

The reflectivity of 2 media is illustrated by the image below.

To compute for reflectivity of 2 media, two essential parameters are needed and these parameters are Index of Refraction of Media 1 (n1) and Index of Refraction of Media 2 (n2).

The formula for calculating reflectivity of 2 media:

R = (n2 – n1 / n2 + n1

Where:

R = Reflectivity of 2 Media
n1 = Index of Refraction of Media 1
n2 = Index of Refraction of Media 2

Given an example;
Find the reflectivity of 2 media when the index of refraction of media 1 is 10 and the index of refraction of media 2 is 20.

This implies that;

n1 = Index of Refraction of Media 1 = 10
n2 = Index of Refraction of Media 2 = 20

R = (n2 – n1 / n2 + n1
R = (20 – 10 / 20 + 10
R = (10 / 30
R = (0.33)²
R = 0.11

Therefore, the reflectivity of 2 media is 0.11.

Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the reflectivity of 2 media.

To get the answer and workings of the reflectivity of 2 media using the Nickzom Calculator – The Calculator Encyclopedia. First, you need to obtain the app.

You can get this app via any of these means:

Web – https://www.nickzom.org/calculator-plus

To get access to the professional version via web, you need to register and subscribe to have utter access to all functionalities.
You can also try the demo version via https://www.nickzom.org/calculator

Android (Paid) – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator
Android (Free) – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator

Apple (Paid) – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8
Once, you have obtained the calculator encyclopedia app, proceed to the Calculator Map, then click on Materials and Metallurgical under Engineering.

Now, Click on Optical Properities under Materials and Metallurgical

Now, Click on Reflectivity of 2 Media under Optical Properities

The screenshot below displays the page or activity to enter your values, to get the answer for the reflectivity of 2 media according to the respective parameter which is the Index of Refraction of Media 1 (n1) and Index of Refraction of Media 2 (n2).

Now, enter the values appropriately and accordingly for the parameters as required by the Index of Refraction of Media 1 (n1is 10 and Index of Refraction of Media 2 (n2) is 20.

Finally, Click on Calculate

As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the reflectivity of 2 media and presents the formula, workings and steps too.

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