## Solid Angle for Radiance Solution

STEP 0: Pre-Calculation Summary
Formula Used
= (dA*cos(φ))/(a^2)
This formula uses 1 Functions, 4 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
Solid Angle for Radiance - (Measured in Radian) - Solid Angle for Radiance is a measure of the amount of the field of view from some particular point that a given object covers.
Surface Area for Radiance - (Measured in Square Meter) - Surface Area for Radiance is a measure of the total area that the surface of the object occupies.
Angle for Radiance - (Measured in Radian) - Angle for Radiance is the angle between the normal on the surface and the mean ray in the pencil being considered.
Distance for Radiance - (Measured in Meter) - Distance for Radiance is a numerical or occasionally qualitative measurement of how far apart objects or points are.
STEP 1: Convert Input(s) to Base Unit
Surface Area for Radiance: 25 Square Meter --> 25 Square Meter No Conversion Required
Distance for Radiance: 35 Meter --> 35 Meter No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
dω = (dA*cos(φ))/(a^2) --> (25*cos(0.5235987755982))/(35^2)
Evaluating ... ...
= 0.0176739878323355
STEP 3: Convert Result to Output's Unit
0.0176739878323355 Radian --> No Conversion Required
(Calculation completed in 00.004 seconds)
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## Credits

Created by Sangita Kalita
National Institute of Technology, Manipur (NIT Manipur), Imphal, Manipur
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National University of Judicial Science (NUJS), Kolkata
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## Solid Angle for Radiance Formula

= (dA*cos(φ))/(a^2)

The primary concept is that of the radiant flux of a source, that is, the amount of radiant energy emitted into space in unit time. Usually, we consider only a fraction of the total flux, namely the flux within a relatively small solid angle in the direction of observation, for example, the flux that reaches the dispersing medium or the detecting system.

## How to Calculate Solid Angle for Radiance?

Solid Angle for Radiance calculator uses Solid Angle for Radiance = (Surface Area for Radiance*cos(Angle for Radiance))/(Distance for Radiance^2) to calculate the Solid Angle for Radiance, Solid Angle for Radiance formula is defined as the flux flowing from a point source Q to a surface of area dA at the (mean) distance a from Q is proportional to the solid angle. Solid Angle for Radiance is denoted by symbol.

How to calculate Solid Angle for Radiance using this online calculator? To use this online calculator for Solid Angle for Radiance, enter Surface Area for Radiance (dA), Angle for Radiance (φ) & Distance for Radiance (a) and hit the calculate button. Here is how the Solid Angle for Radiance calculation can be explained with given input values -> 0.017674 = (25*cos(0.5235987755982))/(35^2).

### FAQ

What is Solid Angle for Radiance?
Solid Angle for Radiance formula is defined as the flux flowing from a point source Q to a surface of area dA at the (mean) distance a from Q is proportional to the solid angle and is represented as dω = (dA*cos(φ))/(a^2) or Solid Angle for Radiance = (Surface Area for Radiance*cos(Angle for Radiance))/(Distance for Radiance^2). Surface Area for Radiance is a measure of the total area that the surface of the object occupies, Angle for Radiance is the angle between the normal on the surface and the mean ray in the pencil being considered & Distance for Radiance is a numerical or occasionally qualitative measurement of how far apart objects or points are.
How to calculate Solid Angle for Radiance?