PPSC Physics Full Book With Answers

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PPSC Physics Full Book

Sr. # Questions Answers Choice
1 Sub atomic particles which experience strong nuclear force are. Leptons Hadrons Mesons Quarks
2 The particles less in mass than protons are Measons Bosons Baryons Nucleons
3 The phenomenon of radioactivity is associated with Decay of nucleus Decay of atoms Fusion of nuclei Emission of electrons
4 The particles equal in mass or greater than protons are called. Mesons Bosons Baryons Nucleons
5 Radio carbon in the atmosphere is produced by the bombardment of. Oxygen by high energy neutrons Oxygen by high energy protons Nitrogen by high energy protons Nitrogen by high energy neutrons
6 The scientific theory concerning the coming into existence of universe. Cosmology Cosmogony Cosmography Cosmos
7 The simple form of particle accelerator is. Cathode ray tube Oscillator <sub>Amplifier</sub> Phase locked loop
8 When a helium atom loses an electron it becomes. An a particle A proton A positive helium ion A negative helium ion
9 A solid state detector is basically A reverse biased p-n junction A forward biased p-n junction A p-n -p transistor A n-p-n transistor
10 Particle which can be added to the nucleus of an atom with changing its chemical properties are called. Electrons Protons Neutrons Alpha particles
11 The tunnel effect makes possible Alpha decay Gama rays Positive Beta decay negative Beta dacay
12 Which of the following causes the deflection of Alpha particles when they re passed through a thin foil. Attraction of nucleus Collision with nuclei Interactions with electrons Electrostatic repulsion by the nucleus
13 When we pass a radiation from a radioactive material through an electric field. All three kinds of rays will be deflected Only the Gama rays are deflected The Alpha and Beta particles are deflected Only the alpha particles are deflected
14 In a fission reactor which particle causes a uranium -235 nucleus to split. Alpha particle Gama ray Neutron Proton
15 Which of the following is its own anti particle. Photon Electron Proton positron
16 When an electron and a positron are annihilated, then number of protons produced is. 1 2 3 4
17 Positron are produced during. Annihilation ionization Pair production x rays production
18 The most readily fissionable isotope of uranium has atomic mass of 234 235 236 238
19 The molecular weight of D2O is 16 18 20 24
20 The process of energy generation in sun and stars is. Fusion of heavy nuclei fusion of light nuclei Fission of light nuclei Solar panels
21 The helium nucleus does not contain Two electrons Two neutrons Two protons Six nucleons
22 The number of electrons in U nucleus are. 92 235 zero 143
23 Nuclear force exists between Proton proton Neutron -neutron neutron -proton All of these
24 Alpha particles emitted from a radioactive material are. He nucliei H -nucliei Li nucliei B nucliei
25 Alpha particles are used for the treatment of skin of a patient due to. Highly ionizing power Low penetration power Positively charged particles Helium nucler
26 Which of the following detectors can count fast and operate at low voltage. G.M Counter Cloud chamber Solid state detector Bubble chamber
27 Specially designed solid state detector can be used to detect. Alpha particles Beta particles Gama rays X- rays
28 An Alpha particle is the same as A helium nucleus A high speed electron A hydrogen nucleus Electromagnetic radiation of short wavelength
29 The result of the alpha particle scattering experiment gave evidence for which of the following. Nuclear fusion Radio active decay Existence of isotopes Nuclear atom
30 Which type of radiation would be stopped completely by a thin piece of cardboard. Alpha particles Beta particles Gama rays X -rays
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