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

2. Which of the following physical quantity is dimensionless?

3. Electron volt is a unit of

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

5.  Which of the following measurements is most precise?

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

7. Physical quantities are

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

9. Resolution is

10. Absolute error of the measurement is

11. 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

12. Which of the following groups have different dimensions?

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

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

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

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

17. The number of significant figures in 0.06900 is:

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

19. Light year is a unit of

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