ECAT Pre Engineering Physics Chapter 21 online mcq test with answers for chapter 21 (Nuclear Physics)

Physics ECAT Pre Engineering Chapter 21 Nuclear Physics Physics Online Test

Sr. #	Questions	Answers Choice
1	The figure 1.007276μ shows the mass of an:	Atom Positron Electron Neutron Proton
2	Nucleon means:	Only electrons Only neutrons Only protons Both (A ) and (C) Both (B) and (C)
3	Neutron was disvovered by:	Rutherford in 1920 Chadwick in 1922 Bohr in 1913 Compton in 1927 None of these
4	Neutron was suggested to be in the nucleus by:	Rutherford in 1920 Bohar in 1913 Dirac in 1928 Anderson in 1932 None of these
5	Which of these is not a radiation detector	Wilson cloud chamber cyclotron acceleration Geiger Miller counter solid state detector
6	When a charged particle passes through matter, it produces ionization, this effect is used in	fission reaction reactor radiation detector fusion reaction
7	Radiation detector are used to	measure intensity of radiation measure energy of radiation difference between different types of radiation all the above
8	Pair production take place when energy ofγ-rays photon is	equal to 1.02 Mev- greater than 1.02 Mev less than 1.02 Mev none of these
9	γ-rays behave like a particle because they explain the	Compton effect Photoelectric effect Pair-production all the above
10	γ-rays are	electrostatic waves electromagnetic waves heavy particles longitudinal waves
11	The penetration power ofβ-particle is	zero less than<span style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: small;">α-particle</span> equal to<span style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: small;">α-particle</span> greater than<span style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: small;">α-particle</span>
12	The range ofβ-particle in air is greater than that ofα-particle by	1000 times 100 times 15 times 10 times
13	β-particles are easily deflected by collisions than heavy	<span style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: small;">α-particles</span> <span style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: small;">β-particles</span> <span style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: small;">γ-particles</span> none of these
14	How much time, theα-particle more massive than an electron	600 7000 5000 15000
15	The range of particle depends upon the factor	charge, mass and energy of particle density of medium ionization potential of the atoms all the above

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