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

2. Which of the following physical quantity is dimensionless?

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

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

5. 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

6. Absolute error of the measurement is

7. The number of significant figures in 0.06900 is:

8.  Which of the following measurements is most precise?

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

10. Electron volt is a unit of

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

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

13. Light year is a unit of

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

15. Which of the following groups have different dimensions?

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

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

18. Physical quantities are

19. Resolution is

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