11th class Physics chapter 1 online mcq test with answers for ICS part 1 Physics chapter 1(Measurements)

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Sr.#	Question	Answer
1	The value 56.8546 cna be rounded off up to three signficant figures.	A. 56.8 B. 56.9 C. 56.7 D. 56.86
2	The most ractive metals of the periodic table are.	A. Alkali metals B. Alkaline metals C. Rare earth metals D. Coinage metals
3	The diameter of a steel ball is measrued using a Vernier callipers and its eading is shown in the figure. whant is the diameer ofthe stell ball.	A. 1.30 cm B. 1.39 cm C. 1.40 cm D. 1.31 cm
4	The dimensions of momentum are:	A. [MLT⁻¹] B. [ML²T⁻²] C. [MLT⁻²] D. [ML²T⁻¹]
5	When adding or subtracting physical quantities, the absolute uncertainty in the final result is found by:	A. Multiplying the individual absolute uncertainties. B. Adding the individual absolute uncertainties. C. Taking the average of the individual absolute uncertainties. D. Subtracting the smallest from the largest individual absolute uncertainty.
6	A precise measurement is the one which has	A. Greater precision B. Less precision C. Medium precision D. More % error
7	Which of the following is the SI base unit for luminous intensity?	A. Ampere B. Candela C. Mole D. Kelvin
8	The dimensions of weight are.	A. [MLT-2] B. [LT-1] C. [LT-2] D. [ML2T]
9	SI Unit of angular velocity are.	A. ms -1 B. rad s-1 C. cm s-1 D. cm s-2
10	The answer to the mathematical division (45.2 x 6.0) in appropriate numebr of significant figures is.	A. 7.5 B. 7.53 C. 7.533 D. 7.5333