# Radiant intensity

Radiant intensity is a measure of the power of electromagnetic radiation per unit area. It is a measure of the intensity of radiation from a point source in a particular direction. Radiant intensity is usually measured in watts per square metre (W/m2).

### How do you calculate radiant intensity?

Radiant intensity is a measure of the intensity of electromagnetic radiation. It is defined as the power per unit area emitted in a particular direction.

The SI unit of radiant intensity is the watt per square metre (W/m^2).

Radiant intensity can be calculated using the following formula:

I = P / A

where:

I = radiant intensity (W/m^2)
P = power (W)
A = area (m^2) What is unit of radiant intensity? Radiant intensity is a measure of the power of electromagnetic radiation per unit area. The SI unit of radiant intensity is the watt per square metre (W/m^2). What is the intensity of radiant energy? The intensity of radiant energy is the power per unit area emitted by a body in the form of electromagnetic radiation. The SI unit of radiant intensity is the watt per square metre (W/m^2).

### What is radiant intensity of LED?

Radiant intensity is a measure of the intensity of electromagnetic radiation. It is defined as the power emitted in a unit solid angle by a unit point source. Radiant intensity can be used to refer to the intensity of light emitted by a point source in a particular direction. What does radiation intensity depend on? The intensity of radiation emitted by a source depends on a number of factors, including the power of the source, the distance from the source, and the type of source.