Question

The dimensions of intensity are:

• A. $M^1{L}^0{T}^{-3}$
• B. $M^2{L}^1{T}^{-2}$
• C. $M^1{L}^2{T}^{-2}$
• D. $M^2{L}^0{T}^{-3}$

Answer 1

Answer: (A)

Intensity = Energy per second per unit area
$=\frac{M{L}^2{T}^{-2}}{T{L}^2}=\left[M^1{L}^0{T}^{-3}\right]$