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Unit , Dimensions & Measurements Test Online MCQs

Test Name Unit , Dimensions & Measurements MCQs Test
Subject Physics
Test Type MCQs
Total Question 15
Total Marks 30
Total Time 15 Mints
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Physical quantities, Unit , Dimensions & Measurements are so important in all aspects of life. Get the knowledge of the Unit , Dimensions & Measurements Multiple Choice Questions Test for the preparation of universities and colleges tests.

Unit , Dimensions & Measurements Test Online MCQs


1. 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

Question 1 of 15

2. In ₈₈Ra²²⁶ nucleus there are

Question 2 of 15

3. Dimensions of electrical resistance are

Question 3 of 15

4. What is the dimensional formula of gravitational constant?

Question 4 of 15

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

Question 5 of 15

6. “Parsec” is the unit of:

Question 6 of 15

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

Question 7 of 15

8. Velocity of light is equal to

Question 8 of 15

9. The dimensions of Planck’s constant are

Question 9 of 15

10. Given that 12000. 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? 

Question 10 of 15

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

Question 11 of 15

12. What is the dimensions of impedance?

Question 12 of 15

13. The dimensional formula for torque is:

Question 13 of 15

14. 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

Question 14 of 15

15. The dimensions formula of magnetic flux is?

Question 15 of 15


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