Physics ECAT Pre Engineering MCQ's Test For Full Book With Answers

Physics ECAT Pre Engineering MCQ's Test For Full Book

Sr. # Questions Answers Choice
1 Distance covered by a freely failing body n the first second of its motion will be: 4.9 m 9.8 m 19.6 m 29.4 m
2 When the total displacement is divided by total time taken, we get: Velocity Average speed Average velocity None of these
3 The decrease in velocity per unit time is called: Variable Acceleration Average Acceleration Retardation None of these
4 The distance covered by a body in unit time is called. Displacement speed Velocity Both B and C
5 Which quantity has different dimension? Tension Work Energy Torque
6 dimensions are the same for: Work and energy Force and weight None of these Both a and b
7 Dimension of mass is written as: M [M] (M) [m]
8 A dimension stands for the ___________ nature of certain physical quantity. super Quantitative Qualitative Both B and C
9 The maximum possible error in the reading for a meter rod with least count 1 mm is: 0.005 mm 0.05mm 0.5mm 5.0mm
10 The maximum possible error in the reading of an instrument is ______ its least count. Half of Quarter of Equal to Double than
11 For multiplication and division purposes, percentage uncertainties are: Add subtracted Multiplied Divided
12 For addition and subtraction purposes, absolute uncertainties are: Added Subtracted Multipiled Divided
13 Uncertainty is of following type/types: Absolute Fractional Percentage All of these
14 The error may occur due to: Negligence Faulty apparatus Inappropriate method all of these
15 If the absolute uncertainty of an instrument is 0.0a1 cm, then its least count will be : 0.005 cm 0.01 cm 0.02 cm 0.001 cm
16 The definite number of significant figures in 5000 is: Four Three Two One
17 Significant figures in 0.2020 are: Two Three Four Five
18 0.0001210 has ____________ significant figures. Four Three Seven Eight
19 Three quarks make: An electron A meson A baryon A photon None of these
20 A pair of quark and antiquark makes a: Meson Baryon Proton Neutron None of these
21 Which are not the elementary particles? Photons Leptons Hadrons Quarks None of these
22 U-238 present in the natural uranium is about: 59% 0.007% 99% 39% 19%
23 Heavy water is made of one oxygen atom and two atoms of: Protium Deuterium Tritium Any of these None of these
24 Examples of moderators used in a fission reactor is/are: Water Heavy water Carbon Hydrocarbon All of these
25 There is present in paraffin a large amount of: Nitrogen Hydrogen Carbon Baryllium Lithium
26 A mass difference of 0.0012 u is equivalent to and energy of: 0.5 Me V 1.13 MeV 5.13 MeV 1.13 keV 1.13 eV
27 In his experiment on nuclear reactions, Rutherford bombardedα particles on: Nitrogen Hydrogen Lead Oxygen Krypton
28 Rutherford performed an experiment on nuclear reactions in: 1718 A.D 1818 A.D 1918 A.D 2001 A.D. 1701 A.D.
29 The counter, which also provides the power to the G.M. tube is called: Thin mica window thin glass window Airy window Wooden window None of these
30 In wilson cloud chamber, the air becomes saturated with: Alcohol vapours Water Helium gas Nitrogen gas None of these
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