Tiêu đề MCQ Applied Physics – A.pdf ✅

Way to Polytechnic ● Way to Polytechnic d. Environmental factors **7. Which method is used for the estimation of errors by comparing with a standard?** a. Absolute error b. Relative error c. Systematic error d. Random error **8. Propagation of errors deals with:** a. Reducing errors in measurements b. Spreading errors to different measurements c. Determining the cause of errors d. Ignoring errors in calculations **9. How many significant figures are in the number 0.00450?** a. 2 b. 3 c. 4 d. 5 **10. The principle of homogeneity of dimensions is based on the fact that:** a. All dimensions are equal b. Dimensions on both sides of an equation must be the same c. Dimensions should be different d. Dimensions are arbitrary **11. What is the dimensional formula of force (Newton)?** a. MLT^2 b. M^2LT^-2 c. MLT^-2 d. M^-1LT^-2 **12. What is the dimensional formula for velocity?** a. M^2LT^-2 b. MLT^-1 c. M^2LT^-1 d. ML^-1T^-1 2