1. Resolution is

2. Which of the following is not the name of physical quantity?

3. Physical quantities are

4. The dimensions of kinetic energy is same as that of

5.  Which of the following measurements is most precise?

6. Electron volt is a unit of

7. Give that the displacement of a particle is given by x = A² sin² kt, where t denotes the time. The unit of k is

8. The dimensional formula for angular momentum is same as that for:

9. Which of the following groups have different dimensions?

10. The mean length of an object is 5 cm. Which of the following measurements is most accurate?

11. The atmospheric pressure is 106 dyne/cm². What is its value in SI unit?

12. Light year is a unit of

13. A particle starting from the origin (0, 0) moves in a straight line in the (x, y) plane. Its coordinates at a later time are the path of the particle makes with the x-axis an angle of

14. Absolute error of the measurement is

15. The weight of a body is 12g. This statement is not correct because:

16. Young’s modulus of steel is 1.9 × 10¹¹ N/m². When expressed in CGS units of dynes/cm², it will be equal to:

17. ML-1T -2 is the dimensional formula of

18. What is the number of significant figures in (3.20 + 4.80) × 10⁵?

19. Which of the following physical quantity is dimensionless?

20. The number of significant figures in 0.06900 is: