Q. Write dimensional formula for the intensity of radiation
A) $M^{1}L^{0}T^{3}$
B) $M^{1}L^{0}T^{- 3}$
C) $M^{1}L^{2}T^{- 2}$
D) $M^{1}L^{2}T^{- 3}$
Explanation
Intensity of radiation $= \frac{Radiation\ Energy}{Area\ \times \ time}$ $\Rightarrow I = \frac{\lbrack ML^{2}T^{- 2}\rbrack}{\lbrack L^{2} \times T\rbrack} = \lbrack ML^{0}T^{- 3}\rbrack$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.