Physics FSC Part 2 Chapter 21 Online MCQ's Test With Answers

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Physics FSC Part 2 Chapter 21 Online MCQ's Test

Sr. # Questions Answers Choice
1 The dead time of G.M tube is. 10<sup>-1</sup> sec 10<sup>-6</sup>sec 10<sup>-4</sup>sec 10<sup>-8</sup>sec
2 A device that shows the visible path of ionizing particle is called. GM counter Solid state detector Scalar Wilson cloud chamber
3 GM counter uses Alcohol only Bromine argon Neon and bromine
4 When a nucleus emits alpha particle its atomic mass decreases by 1 2 3 4
5 In nuclear radiation , track of alpha particle is. Thin Discontinuous Erratic Continuous
6 How many times, the alpha particle is more massive than electrons. 6332 7332 8332 9332
7 Which of the following is similar to electron. Beta particle Alpha particle Neutron Proton
8 If the following particle have the same energy, which particle has the shortest wave length. alpha particle Neutron Beta particle Proton
9 A positron is a particle having. Mass equal to electron Charge equal to electron Mass equal to mass of electron but charge opposite to charge of electron. Mass equal to proton
10 The mass of beta particle is equal to the mass Proton Neutron Electron Photon
11 Which particle has larger range in air. Alpha rays Gama rays Beta rays Neutron
12 The mass of beta particle is equal to mass of. Protons Electrons Neutrons Boron
13 Cobalt -60 is the source for Alpha rays Gama rays Beta rays Neutron
14 Alpha particle carries a charge. -e +2e -2e No charge
15 The charge on Beta particle is +e -e -2e None of these
16 By emitting Beta particle and gama particle simultaneously the nucleolus changes in its charges by N N/2 N/4 3N/4
17 The Unit of decay constant. Second (second)-1 m-1 mk
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