The reflectivity is illustrated by the image below. To calculate reflectivity, two essential parameters are needed and these parameters are Intensity of Reflected Beam (IR) and Intensity of Incident Beam (Io).
The formula for calculating reflectivity:
R =Â IR/Io
Where:
R = Reflectivity
IRÂ = Intensity of Reflected Beam
Io = Intensity of Incident Beam
Given an example;
Find the reflectivity when the intensity of reflected beam is 12 and the intensity of incident beam is 6.
This implies that;
IR = Intensity of Reflected Beam = 12
Io = Intensity of Incident Beam = 6
R =Â IR/Io
That is, R = 12/6
R = 2
Therefore, the reflectivity is 2.
Calculating the Intensity of Reflected Beam when the Reflectivity and the Intensity of Incident Beam are Given
IR = R (Io)
Where:
IRÂ = Intensity of Reflected Beam
R = Reflectivity
Io = Intensity of Incident Beam
Let’s solve an example;
Find the intensity of reflected beam when the reflectivity is 12 and the intensity of incident beam is 4.
This implies that;
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R = Reflectivity = 12
Io = Intensity of Incident Beam = 4
IR = R (Io)
So, IR = 12 (4)
IR = 48
Therefore, the intensity of reflected beam is 48.
Read more:Â How to Calculate and Solve for Reflectivity of 2 media | Optical Properties
Calculating the Intensity of Incident Beam when the Reflectivity and the Intensity of Reflected Beam are Given
Io = IR / R
Where:
Io = Intensity of Incident Beam
R = Reflectivity
IR = Intensity of Reflected Beam
Let’s solve an example;
Find the intensity of incident beam when the reflectivity is 15 and the intensity of reflected beam is 60.
This implies that;
R = Reflectivity = 15
IR = Intensity of Reflected Beam = 60
Io = IR / R
That is, Io = 60 / 15
Io = 4
Therefore, the intensity of incident beam is 4.
How to Calculate Reflectivity With Nickzom Calculator
Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the reflectivity.
To get the answer and workings of the reflectivity 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 under Optical Properities
The screenshot below displays the page or activity to enter your values, to get the answer for the reflectivity according to the respective parameter which is the Intensity of Reflected Beam (IR) and Intensity of Incident Beam (Io).
Now, enter the values appropriately and accordingly for the parameters as required by the Intensity of Reflected Beam (IR) is 12 and Intensity of Incident Beam (Io) is 6.
Finally, Click on Calculate
As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the reflectivity and presents the formula, workings and steps too.
