JAMB Physics 2018 Objective — Question 1

Question 1 of 38 from the Joint Admissions and Matriculation Board (JAMB) Physics 2018 Objective paper, with the correct answer and a full explanation.

The coefficient of viscosity is defined as force per unit area per unit velocity gradient. Given that the dimension of the coefficient of viscosity is MˣLʸTẓ, the values of x, y and z are

A. 1, -1, -1Correct
B. 0, 1, -1
C. 1, -1, 1
D. 0, 1, 1

Explanation

η = F/[A(dv/dy)]; F=MLT⁻², A=L², dv/dy=T⁻¹. So η = MLT⁻²/(L²×T⁻¹) = ML⁻¹T⁻¹, giving x=1, y=-1, z=-1.

Sign up free to unlock

Score tracking
Practice history
Saved questions
Progress dashboard
Personalized sessions
Weak-topic breakdown

…and/or go further with premium services and No Ads.

Create free account

More questions from Physics 2018 Objective More Physics past papers