Dimensional formula of intensity of a wave

Intensity of a wave

[M T⁻³]

Written in full: [M¹ L⁰ T⁻³ A⁰ K⁰]

How to derive it

Intensity of a wave = Power ÷ Area

Put in the dimensions of each part: [ML²T⁻³] ÷ [L²] = [M T⁻³].

mass (M): 1
length (L): 0
time (T): -3
current (A): 0
temperature (K): 0

SI unit

The SI unit of intensity of a wave is W/m².

Same dimensions as intensity of a wave

None of the other quantities on this site share these exact dimensions.

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More from Oscillations and waves

Quantity	Formula
Frequency	[T⁻¹]
Spring constant	[M T⁻²]
Wave number	[L⁻¹]