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 time taken by the light to reach from sun to earth is.	A. 1 min - 20 sec B. 1 min -40 sec C. 9min -20sec D. 8 min - 20 sec
2	The dimensionally correct equation of E is.	A. mc2 B. mc C. m/c D. m2c2
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	[M⁰ L⁰T-1] Refers to.	A. Angular velocity B. Wavelength C. Time Period D. Velocity
5	The least count of aninstrument determines	A. Precision of a measurment B. Accuracy of a measurement C. Factinal uncertainty of a measuremnet D. Percentage uncertainty of a measurement
6	The dimensions of momentum are:	A. [MLT⁻¹] B. [ML²T⁻²] C. [MLT⁻²] D. [ML²T⁻¹]
7	The scientific notation of numebr 0.0023 is expressed.	A. 2.3 x 10^-3 B. 0.2.3 x 10^-3 C. 2.3 x 10^-4 D. 02.3 x 10⁴
8	One ligh year is equal to in meteres.	A. 9.5 x 10¹⁵ B. 9.5 x 10^-15 C. 3.1 x 102 D. 3.1 x 10^-8
9	The number of significant figures of a measureent are define das.	A. They reflect the accuracy of the observation in a measurement B. They are teh figures which are reasonably reliable C. They are the accurately known digits and the first doubtful digit of measurement D. All of the above
10	The most ractive metals of the periodic table are.	A. Alkali metals B. Alkaline metals C. Rare earth metals D. Coinage metals