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

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

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

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

5. Light year is a unit of

6. Absolute error of the measurement is

7. Electron volt is a unit of

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

9.  Which of the following measurements is most precise?

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

11. Which of the following groups have different dimensions?

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

13. Which of the following physical quantity is dimensionless?

14. The number of significant figures in 0.06900 is:

15. Physical quantities are

16. Resolution is

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

18. 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

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

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: