Unit , Dimensions & Measurements Test Online MCQs

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

2. Which if the following pair of quantities do not have the same dimensions:

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

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

5. What is the dimensions of impedance?

6. The dimensions formula of magnetic flux is?

7. The speed of light (c), gravitational constant (G) and plank’s constant (h) are taken as fundamental units in a system. The dimensions of time in this new system should be

8. The dimensions of torque are

9. Dimensions of electrical resistance are

10. In ₈₈Ra²²⁶ nucleus there are

11. Given that . Two out of the three vectors are equal in magnitude. The magnitude of the third vector is √2 times that of the other two. Which of the following can be the angles between these vectors? 

12. The magnetic moment has dimensions of

13. What is the dimensional formula of gravitational constant?

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

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