# Malus Law Calculator

Introduction

Calculating the intensity of light transmitted through a polarizer is essential in various fields such as optics, photography, and physics. One of the fundamental laws governing this phenomenon is Malus’ Law. Utilizing a Malus Law calculator simplifies this process, offering accurate results swiftly.

## How to Use

To utilize the Malus Law calculator effectively:

- Input the initial light intensity
*I*0 in Watts per square meter (W/m²). - Enter the angle
*θ*between the polarizer and the direction of polarization in degrees. - Click the “Calculate” button to obtain the intensity of light transmitted through the polarizer.

## Formula

The formula for Malus’ Law is as follows:

Where:

*I*is the intensity of light transmitted through the polarizer.*I*0 is the initial light intensity.*θ*is the angle between the polarizer and the direction of polarization.

## Example Solve

Let’s demonstrate how to use the Malus Law calculator with an example:

*I*0=100*W*/*m*2*θ*=45∘

Using the formula:

**FAQs**

**What is Malus’ Law?**

Malus’ Law describes the intensity of polarized light transmitted through a polarizer concerning the angle between the polarizer and the direction of polarization.

**Why is Malus’ Law important?**

Malus’ Law is crucial in understanding how polarizers work and predicting the behavior of polarized light in various applications, including photography, optics, and physics experiments.

**Can Malus’ Law be applied to all types of light?**

Malus’ Law is applicable to light waves that are polarized, meaning their electric fields vibrate in a specific direction.

## Conclusion

Utilizing a Malus Law calculator simplifies the process of determining the intensity of light transmitted through a polarizer. By inputting the initial light intensity and the angle between the polarizer and the direction of polarization, accurate results can be obtained swiftly.