Thin-Film Destructive Interference in Reflected Light Calculator

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Interference of Waves of Two Intensities

✖Number n will hold the numeric value for A.ⓘ Number n [n]			+10% -10%
✖Wavelength can be defined as the distance between two successive crests or troughs of a wave.ⓘ Wavelength [λ]			+10% -10%

✖Destructive Interference occurs when the maxima of two waves are 180 degrees out of phase: a positive displacement of one wave is canceled exactly by a negative displacement of the other wave.ⓘ Thin-Film Destructive Interference in Reflected Light [I_d]

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Formula

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Thin-Film Destructive Interference in Reflected Light

Formula

`"I"_{"d"} = "n"*"λ"`

Example

`"1.34"="5"*"26.8cm"`

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Thin-Film Destructive Interference in Reflected Light Solution

STEP 0: Pre-Calculation Summary

Formula Used

Destructive Interference = Number n*Wavelength
I_d = n*λ
This formula uses 3 Variables

Variables Used

Destructive Interference - Destructive Interference occurs when the maxima of two waves are 180 degrees out of phase: a positive displacement of one wave is canceled exactly by a negative displacement of the other wave.
Number n - Number n will hold the numeric value for A.
Wavelength - (Measured in Meter) - Wavelength can be defined as the distance between two successive crests or troughs of a wave.

STEP 1: Convert Input(s) to Base Unit

Number n: 5 --> No Conversion Required
Wavelength: 26.8 Centimeter --> 0.268 Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

I_d = n*λ --> 5*0.268

Evaluating ... ...

I_d = 1.34

STEP 3: Convert Result to Output's Unit

1.34 --> No Conversion Required

FINAL ANSWER

1.34 <-- Destructive Interference

(Calculation completed in 00.004 seconds)

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Created by Payal Priya

Birsa Institute of Technology (BIT), Sindri

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< 4 Thin-Film Interference Calculators

Thin-Film Constructive Interference in Reflected Light

Go Constructive Interference = (Number n+1/2)*Wavelength

Thin-Film Destructive Interference in Transmitted Light

Go Destructive Interference = (Number n+1/2)*Wavelength

Thin-Film Constructive Interference in Transmitted Light

Go Constructive Interference = Number n*Wavelength

Thin-Film Destructive Interference in Reflected Light

Go Destructive Interference = Number n*Wavelength

Thin-Film Destructive Interference in Reflected Light Formula

Destructive Interference = Number n*Wavelength
I_d = n*λ

What is thin-film interference ?

Thin-film interference is the phenomenon that is a result of lightwave being reflected off two surfaces that are at a distance comparable to its wavelength. When light waves that reflect off the top and bottom surfaces interfere with one another we see different colored patterns. During this, the light reaches the boundary between two media, and part of it gets reflected and some part gets transmitted.

When the second medium is a thin film, there are two reflections occurring close together at the top and bottom boundary surfaces of the thin film. Thus, there are two waves emerging from a thin film – one wave reflected off the top surface of the film and the other reflected off the bottom surface.

How to Calculate Thin-Film Destructive Interference in Reflected Light?

Thin-Film Destructive Interference in Reflected Light calculator uses Destructive Interference = Number n*Wavelength to calculate the Destructive Interference, Thin-film destructive interference in reflected light is formed when a plane wave (parallel rays) is incident normally on a thin film of uniform thickness d then waves reflected from the upper surface interfere with the waves reflected from the lower surface. Destructive Interference is denoted by I_d symbol.

How to calculate Thin-Film Destructive Interference in Reflected Light using this online calculator? To use this online calculator for Thin-Film Destructive Interference in Reflected Light, enter Number n (n) & Wavelength (λ) and hit the calculate button. Here is how the Thin-Film Destructive Interference in Reflected Light calculation can be explained with given input values -> 1.34 = 5*0.268.

FAQ

What is Thin-Film Destructive Interference in Reflected Light?

Thin-film destructive interference in reflected light is formed when a plane wave (parallel rays) is incident normally on a thin film of uniform thickness d then waves reflected from the upper surface interfere with the waves reflected from the lower surface and is represented as I_d = n*λ or Destructive Interference = Number n*Wavelength. Number n will hold the numeric value for A & Wavelength can be defined as the distance between two successive crests or troughs of a wave.

How to calculate Thin-Film Destructive Interference in Reflected Light?

Thin-film destructive interference in reflected light is formed when a plane wave (parallel rays) is incident normally on a thin film of uniform thickness d then waves reflected from the upper surface interfere with the waves reflected from the lower surface is calculated using Destructive Interference = Number n*Wavelength. To calculate Thin-Film Destructive Interference in Reflected Light, you need Number n (n) & Wavelength (λ). With our tool, you need to enter the respective value for Number n & Wavelength and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Destructive Interference?

In this formula, Destructive Interference uses Number n & Wavelength. We can use 1 other way(s) to calculate the same, which is/are as follows -

Destructive Interference = (Number n+1/2)*Wavelength

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