PPSC Physics Topic 7 Modern Physics With Answers

PPSC Physics Topic 7 Modern Physics

Sr. # Questions Answers Choice
1 The energy delivered to the tissue per unit mass is called the absorbed dose of. X rays gama rays Radiation energy
2 What is the quantitative description of the effect of radiation on the living tissue. Radiation dosimetry Radioactive dating Telemetry Dosage
3 The most familiar example of radioactive dating is. Nitrogen dating Carbon dating Hydrogen dating Helium dating
4 The constant lamda is called the. Decay constant Gas constant Planck's constant Dose constant
5 One rem is equal to. <div>0.1 Sv</div> 0.01 Sv 0.001 Sv 0.0001 SV
6 The SI unit of equivalent dose is Seivert Gray Radian Rem
7 One radian is equal to. 0.1 Gy 0.01 Gy 0.001 Gy 0.0001 gy
8 One gray is equal to. 1 J-1 kg -1 1 J -1 kg -2 1 J 1 -g-1 1 j kg -2
9 The SI unit of absorbed dose in. Bel Weber Rem Grey
10 One becquerel is equal to Decay of orie radioactive atoms per second Decay of 10 radioactive atoms per secnd Decay of 100 radioactive atoms per second Decay of infinity radioactive atoms per second.
11 the alpha particle does not travel for enough in air. Due to its intense ionization Due to its large mass Due to its high charge Due to its Hight Ionization
12 Radioactive decay series can be represents on Smith chart Segre chart Logarithmic chart Carbon paper
13 Beta decay may occur by Beta minus Beta Plus Electron capture All of these
14 The decay to form other nuclides by emitting particles and electromagnetic radiations by unstable nuclides is called. Nuclear stability Radioactivity Carbon dating Spontaneously
15 The force that bonds protons and neutrons together int he nucleus despite the electrical repulsion of the protons is called. Molecular force Nuclear force Atomic force Gravitational force
16 The binding energy to pull the deuterium H apart into a proton and a neutron is equal to. 1.22 MeV 2.22 MeV 3.22 Mev 4.22 MeV
17 The energy that must be added to separate the nucleus is called. Critical energy Binding energy Gravitational energy Electrostatic energy
18 How much large is the proton mass than the electron mass. 1536 1636 1736 1836
19 The relationship between mass number atomic number and neutron number is. A = Z + N A = Z - N Z = A + N N = Z - A
20 The total number nucleons in a nucleus are called. Mass number Atomic number Neutron number Isotopes
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