Units And Dimensions Question 1
Question 1 - 2024 (01 Feb Shift 1)
The dimensional formula of angular impulse is :
(1) $\left[\mathrm{ML}^{-2} \mathrm{~T}^{-1}\right]$
(2) $\left[\mathrm{ML}^{2} \mathrm{~T}^{-2}\right]$
(3) $\left[\mathrm{MLT}^{-1}\right]$
(4) $\left[\mathrm{ML}^{2} \mathrm{~T}^{-1}\right]$
Show Answer
Answer: (4)
Solution:
Angular impulse $=$ change in angular momentum.
[ Angular impulse $]=[$ Angular momentum $]=[\mathrm{mvr}]$
$=\left[\mathrm{ML}^{2} \mathrm{~T}^{-1}\right]$
