Wednesday, May 20, 2020

Physics Quiz | Radioactivity | General Knowledge

Physics Quiz | Radioactivity | General Knowledge

Physics Quiz (Radioactivity)

1. Radius of nucleus ranges from
    10 -15 m

    10-10 m

... Answer is B.
10 -15 m to 10-14m



2. Which of the following is determined by the number of protons in an atom?




... Answer is A.
chemical properties



3. In β+ decay, an UP quark becomes




... Answer is C.
a down quark



4. Most of the space in an atom is




... Answer is B.
empty



5. What is a proton made up of?




... Answer is C.
two up quarks and a down



6. Neutrinos have electric charge of




... Answer is A.
zero



7. β- radiations are simply




... Answer is C.
electrons



8. In a nuclear process, the quantity conserved is




... Answer is C.
mass-energy



9. What is a specific combination of protons and neutrons in a nucleus called?




... Answer is B.
nuclide



10. In β+ decay, the nucleon number is




... Answer is A.
conserved



11. Particles that are un affected by strong nuclear force are




... Answer is B.
leptons



12. Number of isotopes neon has is




... Answer is C.
3



13. When was the phenomena of radioactivity discovered by Henri Becquerel?




... Answer is A.
in 1896



14. Radiations emitted by radioactive substances is




... Answer is D.
all of above



15. Elements undergo radioactive decay when proton number becomes greater than




... Answer is C.
83

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