Malus Law Calculator

✖Intensity 1 is a measure of the amount of energy or power per unit area of a wave, typically measured in units of power per unit area.ⓘ Intensity 1 [I₁]			+10% -10%
✖Angle from Slit Center to Light Source is the angle formed by the line connecting the center of the slit to the light source and the normal to the slit.ⓘ Angle from Slit Center to Light Source [θ]			+10% -10%

✖Transmitted Intensity is the amount of intensity of a wave that is allowed to pass through a medium or a surface, often affected by the properties of the medium or surface.ⓘ Malus Law [I_T]

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Malus Law Solution

STEP 0: Pre-Calculation Summary

Formula Used

Transmitted Intensity = Intensity 1*(cos(Angle from Slit Center to Light Source))^2
I_T = I₁*(cos(θ))^2
This formula uses 1 Functions, 3 Variables

Functions Used

cos - Cosine of an angle is the ratio of the side adjacent to the angle to the hypotenuse of the triangle., cos(Angle)

Variables Used

Transmitted Intensity - (Measured in Candela) - Transmitted Intensity is the amount of intensity of a wave that is allowed to pass through a medium or a surface, often affected by the properties of the medium or surface.
Intensity 1 - (Measured in Candela) - Intensity 1 is a measure of the amount of energy or power per unit area of a wave, typically measured in units of power per unit area.
Angle from Slit Center to Light Source - (Measured in Radian) - Angle from Slit Center to Light Source is the angle formed by the line connecting the center of the slit to the light source and the normal to the slit.

STEP 1: Convert Input(s) to Base Unit

Intensity 1: 9 Candela --> 9 Candela No Conversion Required
Angle from Slit Center to Light Source: 15.7 Degree --> 0.274016692563058 Radian (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

I_T = I₁*(cos(θ))^2 --> 9*(cos(0.274016692563058))^2

Evaluating ... ...

I_T = 8.34097858773922

STEP 3: Convert Result to Output's Unit

8.34097858773922 Candela --> No Conversion Required

FINAL ANSWER

8.34097858773922 ≈ 8.340979 Candela <-- Transmitted Intensity

(Calculation completed in 00.004 seconds)

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Home » Physics » Wave Optics » Basic Physics » Optics and Waves » Optics » Intensity and Interference of Light Waves » Malus Law

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Created by Payal Priya

Birsa Institute of Technology (BIT), Sindri

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< Intensity and Interference of Light Waves Calculators

Interference of Waves of Two Intensities

LaTeX Go Resultant Intensity = Intensity 1+Intensity 2+2*sqrt(Intensity 1*Intensity 2)*cos(Phase Difference)

Intensity of Constructive Interference

LaTeX Go Resultant Intensity of Constructive = (sqrt(Intensity 1)+sqrt(Intensity 2))^2

Intensity of Destructive Interference

LaTeX Go Resultant Intensity of Destructive = (sqrt(Intensity 1)-sqrt(Intensity 2))^2

Resultant Intensity On-Screen of Young's Double-Slit Experiment

LaTeX Go Resultant Intensity = 4*(Intensity from Slit 1)*cos(Phase Difference/2)^2

Malus Law Formula

LaTeX Go

Transmitted Intensity = Intensity 1*(cos(Angle from Slit Center to Light Source))^2
I_T = I₁*(cos(θ))^2

What is Malus' Law?

Malus' law describes how the intensity of polarized light changes as it passes through a polarizer. The intensity of the transmitted light is proportional to the square of the cosine of the angle between the light’s initial polarization direction and the axis of the polarizer.

How to Calculate Malus Law?

Malus Law calculator uses Transmitted Intensity = Intensity 1*(cos(Angle from Slit Center to Light Source))^2 to calculate the Transmitted Intensity, Malus Law formula is defined as a mathematical representation of the intensity of light that passes through a polarizer, describing how the intensity of light is affected by the angle of the polarizer, and is widely used in optics and physics to calculate the transmission of light through polarized filters. Transmitted Intensity is denoted by I_T symbol.

How to calculate Malus Law using this online calculator? To use this online calculator for Malus Law, enter Intensity 1 (I₁) & Angle from Slit Center to Light Source (θ) and hit the calculate button. Here is how the Malus Law calculation can be explained with given input values -> 8.340979 = 9*(cos(0.274016692563058))^2.

FAQ

What is Malus Law?

Malus Law formula is defined as a mathematical representation of the intensity of light that passes through a polarizer, describing how the intensity of light is affected by the angle of the polarizer, and is widely used in optics and physics to calculate the transmission of light through polarized filters and is represented as I_T = I₁*(cos(θ))^2 or Transmitted Intensity = Intensity 1*(cos(Angle from Slit Center to Light Source))^2. Intensity 1 is a measure of the amount of energy or power per unit area of a wave, typically measured in units of power per unit area & Angle from Slit Center to Light Source is the angle formed by the line connecting the center of the slit to the light source and the normal to the slit.

How to calculate Malus Law?

Malus Law formula is defined as a mathematical representation of the intensity of light that passes through a polarizer, describing how the intensity of light is affected by the angle of the polarizer, and is widely used in optics and physics to calculate the transmission of light through polarized filters is calculated using Transmitted Intensity = Intensity 1*(cos(Angle from Slit Center to Light Source))^2. To calculate Malus Law, you need Intensity 1 (I₁) & Angle from Slit Center to Light Source (θ). With our tool, you need to enter the respective value for Intensity 1 & Angle from Slit Center to Light Source and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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