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The SI unit of radiant exposure is the joule per square metre (J/m 2), while that of spectral exposure in frequency is the joule per square metre per hertz (J⋅m −2 ⋅Hz −1) and that of spectral exposure in wavelength is the joule per square metre per metre (J/m 3)—commonly the joule per square metre per nanometre (J⋅m −2 ⋅nm −1).
watt per square metre, per metre W/m 3: M⋅L −1 ⋅T −3: Radiant exposure: H e: joule per square metre J/m 2: M⋅T −2: Radiant energy received by a surface per unit area, or equivalently irradiance of a surface integrated over time of irradiation. This is sometimes also called "radiant fluence". Spectral exposure: H e,ν [nb 3] joule ...
watt per square metre, per metre W/m 3: M⋅L −1 ⋅T −3: Radiant exposure: H e: joule per square metre J/m 2: M⋅T −2: Radiant energy received by a surface per unit area, or equivalently irradiance of a surface integrated over time of irradiation. This is sometimes also called "radiant fluence". Spectral exposure: H e,ν [nb 3] joule ...
The SI has special names for 22 of these coherent derived units (for example, hertz, the SI unit of measurement of frequency), but the rest merely reflect their derivation: for example, the square metre (m 2), the SI derived unit of area; and the kilogram per cubic metre (kg/m 3 or kg⋅m −3), the SI derived unit of density.
watt per square metre, per metre W/m 3: M⋅L −1 ⋅T −3: Radiant exposure: H e: joule per square metre J/m 2: M⋅T −2: Radiant energy received by a surface per unit area, or equivalently irradiance of a surface integrated over time of irradiation. This is sometimes also called "radiant fluence". Spectral exposure: H e,ν [nb 3] joule ...
watt per square metre, per metre W/m 3: M⋅L −1 ⋅T −3: Radiant exposure: H e: joule per square metre J/m 2: M⋅T −2: Radiant energy received by a surface per unit area, or equivalently irradiance of a surface integrated over time of irradiation. This is sometimes also called "radiant fluence". Spectral exposure: H e,ν [nb 3] joule ...
joule second (J⋅s) intensity: watt per square meter (W/m 2) sound intensity: watt per square meter (W/m 2) electric current: ampere (A) moment of inertia: kilogram meter squared (kg⋅m 2) intensity: watt per square meter (W/m 2) imaginary unit: unitless electric current: ampere (A) ^
watt per square metre, per metre W/m 3: M⋅L −1 ⋅T −3: Radiant exposure: H e: joule per square metre J/m 2: M⋅T −2: Radiant energy received by a surface per unit area, or equivalently irradiance of a surface integrated over time of irradiation. This is sometimes also called "radiant fluence". Spectral exposure: H e,ν [nb 3] joule ...