JEE Main 2022 · 27 Jun · Shift 2 · Physics Q31

PhysicsSingle correct+4 / -1Question 31 of 90

The SI unit of a physical quantity is pascal-second. The dimensional formula of this quantity will be :

[ML^{-1}T^{-1}]

[ML^{-1}T^{-2}]

[ML^2T^{-1}]

[M^{-1}L^3T^0]

Answer and worked solution

Official answer: A

Pascal-second is pressure times time: $ML^{-1}T^{-2}\cdot T=[ML^{-1}T^{-1}]$ (the unit of viscosity).

(A)

Topics:Dimensional analysis

JEE Main 2022 · 27 Jun · Shift 2, Physics question 31