ECAT Pre General Science Physics Chapter 1 Measurements Online Test With Answers

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ECAT Pre General Science Physics Chapter 1 Measurements Online Test

Sr. # Questions Answers Choice
1 Aerodynamics is a branch of Hydrodynamics Thermodynamics Both of them Statics
2 Silicon can be obtained from Lead Uranium An isotope of oxygen Sand
3 Particles have the mass smallest of following is Electron Proton Neutron Quark
4 The mechanics, which deals with the objects moving with velocities approaching that of light is called Relativistic mechanics Wave mechanics Quantum mechanics Statics
5 Astrophysics is a branch of physics, which deals with Sub-atomic Stars and galaxies Light and sound Music
6 The information from far side of the universe are gathered by Radio telescope Microscope Telescope Spectro scpe
7 Physics deals with the study of Matter Energy Both of them Human Body
8 The body of physics involves Structure of space and time Interaction of electromagnetic radiation with matter Both of them Chemical Changes
9 Which one is the least multiple Pico Femto Nano Atto
10 Significant figures in 0.0010 are Four Three Two One
11 1 gm-cm-3is equal to 10<sup>3</sup>kg-m<sup>-3</sup> 10<sup>-3</sup>kg-m<sup>-3</sup> 1kg-m<sup>-3</sup> 10<sup>6</sup>kg-m<sup>-1</sup>
12 Light year is a unit of Time Distance Velocity Intensity of light
13 Silicon can be obtained from Lead Uranium An isotope of oxygen Sand
14 Which of the following are the units of intensity of light Pois Lux Siemen Candela
15 Number of supplementary units are Three Two Seven Five
16 Total number of base units are Three Five Seven Nine
17 The system international (SI) is built from _______ kind of unites Two Three Four Five
18 The principle characteristics of an ideal standard are Inaccessible and Invariable Accessible and Invariable Accessible and Variable None of these
19 Diameter of the atom is of the order of 10<sup>-10</sup>m 10<sup>-12</sup>m 10<sup>-15</sup>m 10<sup>-9</sup>m
20 Diameter of the nucleus s of the order of 10<sup>-10</sup>m 10<sup>-12</sup>m 10<sup>-15</sup>m 10<sup>-18</sup>m
21 Distance to nearest galaxy from earth is 10<sup>10</sup>m 10<sup>15</sup>m 10<sup>40</sup>m 10<sup>30</sup>m
22 Physical quantities are often divided into ______ categories 3 2 9 5
23 Those quantities which can be measured accurately are known as Physical Quantities Scalar Quantities Vector Quantities Non Physical Quantities
24 Which branch of physics deals with the structure and properties of solids Atomic Physics Plasma Physics Molecular Physics Solid state physics
25 Computer chips are made from Conductors Semiconductors Insulators Both A and B
26 The branch of physics which concerned with the ultimate particles of which the universe is composed is known as SolidState physics Particle Physics Nuclear Physics Atomic Physics
27 The instrument used to gather information form the far side of the universe is Compound microscope Radio telescope Astronomical Telescope Simple microscope
28 At the present time, the main frontiers of fundamental science are 2 3 4 5
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