Unit , Dimensions & Measurements Test Online MCQs

1. What is the dimensional formula of gravitational constant?

2. Which of the following pairs does not have similar dimensions?

3. The dimensions of Planck’s constant are

4. Using mass (M), length (L), time (T)and current (A) as fundamental quantities, the dimensional formula of permittivity is:

5. The magnetic moment has dimensions of

6. Velocity of light is equal to

7. The dimensional formula of the constant a in Vander Wall’s gas equation (P + a/V²)(V-b) =RT is:

8. The length and breadth of a metal sheet are 3.124 m and 3.002 m respectively. The area of this sheet up to four correct significant figure is:

9. Using mass (M), length (L), time (T) and current (A) as fundamental quantities, the dimensions of permeability are:

10. Dimensions of electrical resistance are

11. What is the dimensions of impedance?

12. The activity of radioactive sample is measured as 9750 counts per minute at t = 0 and as 975 counts per minute at t = 5 minutes, the decay constant is approximately

13. Which of the following physical quantities do not have same dimensions?

14. Dimensions of coefficient of viscosity is

15. The dimensions of torque are