FormulaDen.com

Physics Chemistry Math Chemical Engineering Civil Electrical Electronics Electronics and Instrumentation Materials Science Mechanical Production Engineering Financial Health

Malus Law Formula

Fx Copy

LaTeX Copy

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. Check FAQs

I T = I 1 \cdot {(\cos (θ))}^{2}

I_T - Transmitted Intensity?I₁ - Intensity 1?θ - Angle from Slit Center to Light Source?

Malus Law Example

With values

With units

Only example

Here is how the Malus Law equation looks like with Values.

Here is how the Malus Law equation looks like with Units.

Here is how the Malus Law equation looks like.

8.341 = 9 \cdot {(\cos (15.7))}^{2}

8.341cd = 9cd \cdot {(\cos (15.7°))}^{2}

8.341 = 9 \cdot {(\cos (15.7))}^{2}

Tip: Use pencil ( Pencil

) icon above to edit Input Values and Units.

Calculate

Recalculate

Solution

Copy

Reset

You are here -

Home » Category

Physics » Category

Basic Physics » Category

Optics and Waves » fx Malus Law

Malus Law Solution

Follow our step by step solution on how to calculate Malus Law?

FIRST Step Consider the formula

I T = I 1 \cdot {(\cos (θ))}^{2}

Next Step Substitute values of Variables

∴

I T = 9cd \cdot {(\cos (15.7°))}^{2}

Next Step Convert Units

∴

I T = 9cd \cdot {(\cos (0.274rad))}^{2}

Next Step Prepare to Evaluate

∴

I T = 9 \cdot {(\cos (0.274))}^{2}

Next Step Evaluate

∴

I T = 8.34097858773922cd

LAST Step Rounding Answer

∴

I T = 8.341cd

Malus Law Formula Elements

Variables

Functions

Transmitted Intensity

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.

Symbol: I_T

Measurement: Luminous IntensityUnit: cd

Note: Value can be positive or negative.

Formulas to find Transmitted Intensity

Intensity 1

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.

Symbol: I₁

Measurement: Luminous IntensityUnit: cd

Note: Value should be greater than 0.

Formulas to find Intensity 1

Angle from Slit Center to Light Source

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.

Symbol: θ

Measurement: AngleUnit: °

Note: Value can be positive or negative.

Formulas to find Angle from Slit Center to Light Source

cos

Cosine of an angle is the ratio of the side adjacent to the angle to the hypotenuse of the triangle.

Syntax: cos(Angle)

Other formulas in Intensity and Interference of Light Waves category

Go Interference of Waves of Two Intensities

I = I 1 + I 2 + 2 \cdot \sqrt{I 1 \cdot I 2} \cdot \cos (Φ)

Go Intensity of Constructive Interference

I C = {(\sqrt{I 1} + \sqrt{I 2})}^{2}

Go Intensity of Destructive Interference

I D = {(\sqrt{I 1} - \sqrt{I 2})}^{2}

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

I = 4 \cdot (I S1) \cdot {\cos (\frac{Φ}{2})}^{2}

How to Evaluate Malus Law?

Malus Law evaluator uses Transmitted Intensity = Intensity 1*(cos(Angle from Slit Center to Light Source))^2 to evaluate 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 evaluate Malus Law using this online evaluator? To use this online evaluator for Malus Law, enter Intensity 1 (I₁) & Angle from Slit Center to Light Source (θ) and hit the calculate button.

FAQs on Malus Law

What is the formula to find Malus Law?

The formula of Malus Law is expressed as Transmitted Intensity = Intensity 1*(cos(Angle from Slit Center to Light Source))^2. Here is an example- 8.340979 = 9*(cos(0.274016692563058))^2.

How to calculate Malus Law?

With Intensity 1 (I₁) & Angle from Slit Center to Light Source (θ) we can find Malus Law using the formula - Transmitted Intensity = Intensity 1*(cos(Angle from Slit Center to Light Source))^2. This formula also uses Cosine (cos) function(s).

Can the Malus Law be negative?

Yes, the Malus Law, measured in Luminous Intensity can be negative.

Which unit is used to measure Malus Law?

Malus Law is usually measured using the Candela[cd] for Luminous Intensity. Candle (International)[cd], Decimal Candle[cd], Hefner Candle[cd] are the few other units in which Malus Law can be measured.

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit