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Radiant Flux Formula

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Radiant Flux is emitted within the small wavelength range of a spectral line. Check FAQs

dΦ = I r \cdot dω

dΦ - Radiant Flux?I_r - Radiant Intensity?dω - Solid Angle for Radiance?

Radiant Flux Example

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With units

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Here is how the Radiant Flux equation looks like with Values.

Here is how the Radiant Flux equation looks like with Units.

Here is how the Radiant Flux equation looks like.

0.0204 = 1.2 \cdot 0.017

0.0204erg/s = 1.2W/sr \cdot 0.017rad

0.0204 = 1.2 \cdot 0.017

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Radiant Flux Solution

Follow our step by step solution on how to calculate Radiant Flux?

FIRST Step Consider the formula

dΦ = I r \cdot dω

Next Step Substitute values of Variables

∴

dΦ = 1.2W/sr \cdot 0.017rad

Next Step Prepare to Evaluate

∴

dΦ = 1.2 \cdot 0.017

Next Step Evaluate

∴

dΦ = 2.04E-09W

LAST Step Convert to Output's Unit

∴

dΦ = 0.0204erg/s

Radiant Flux Formula Elements

Variables

Radiant Flux

Radiant Flux is emitted within the small wavelength range of a spectral line.

Symbol: dΦ

Measurement: PowerUnit: erg/s

Note: Value can be positive or negative.

Formulas to find Radiant Flux

Radiant Intensity

Radiant Intensity is the radiant flux emitted, reflected, transmitted or received, per unit solid angle.

Symbol: I_r

Measurement: Radiant IntensityUnit: W/sr

Note: Value can be positive or negative.

Formulas to find Radiant Intensity

Solid Angle for Radiance

Solid Angle for Radiance is a measure of the amount of the field of view from some particular point that a given object covers.

Symbol: dω

Measurement: AngleUnit: rad

Note: Value can be positive or negative.

Formulas to find Solid Angle for Radiance

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How to Evaluate Radiant Flux?

Radiant Flux evaluator uses Radiant Flux = Radiant Intensity*Solid Angle for Radiance to evaluate the Radiant Flux, The Radiant Flux formula is defined as flux emitted within the small wavelength range of a spectral line, determined experimentally either accurately by integration over the line profile, or approximately by measuring the peak value. Radiant Flux is denoted by dΦ symbol.

How to evaluate Radiant Flux using this online evaluator? To use this online evaluator for Radiant Flux, enter Radiant Intensity (I_r) & Solid Angle for Radiance (dω) and hit the calculate button.

FAQs on Radiant Flux

What is the formula to find Radiant Flux?

The formula of Radiant Flux is expressed as Radiant Flux = Radiant Intensity*Solid Angle for Radiance. Here is an example- 204000 = 1.2*0.017.

How to calculate Radiant Flux?

With Radiant Intensity (I_r) & Solid Angle for Radiance (dω) we can find Radiant Flux using the formula - Radiant Flux = Radiant Intensity*Solid Angle for Radiance.

Can the Radiant Flux be negative?

Yes, the Radiant Flux, measured in Power can be negative.

Which unit is used to measure Radiant Flux?

Radiant Flux is usually measured using the Erg per Second[erg/s] for Power. Watt[erg/s], Kilowatt[erg/s], Milliwatt[erg/s] are the few other units in which Radiant Flux can be measured.

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Radiant Flux Formula

Radiant Flux Example

Radiant Flux Solution

Radiant Flux Formula Elements

Other formulas in Spectrochemistry category

How to Evaluate Radiant Flux?

FAQs on Radiant Flux

Variable Name