10th Science Chapter-06 Nuclear Physics Creative One Mark Question and Answers Part-03
10th Science Chapter-06 Nuclear Physics Creative One Mark Question and Answers Part-03
01.Technetium is a radioactive substance with atomic number ________
a) 41
b) 42
c) 43
d) 44
Correct answer
43
02._______ is the traditional unit of radioactivity.
a) Curie
b) Robert
c) Thomas
d) Thomson
Correct answer
Curie
03.The mass of an atom is concentrated on its ________
a) orbits
b) electrons
c) nucleus
d) neutrons
Correct answer
nucleus
04.The charge of a gamma particle is ______
a) zero
b) one
c) two
d) three
Correct answer
zero
05.Natural radioactivity is exhibited by elements with atomic number more than ______
a) 80
b) 81
c) 83
d) 85
Correct answer
83
06.Artificial radioactivity was discovered by _________
a) roentgen
b) curie
c) becquerel
d) all the above
Correct answer
curie
07.Things around us are made up of _______
a) atoms
b) bombs
c) nuclear
d) none of these
Correct answer
atoms
08._____________ believed that the matter is made up of tiny indestructible units called atoms.
a) John Dalton
b) Democritus
c) JJ Thomson
d) Goldstein
Correct answer
Democritus
09._________ was the first nuclear reactor built in India.
a) Apsara
b) Sara
c) Neha
d) none of these
Correct answer
Apsara
10.The bomb dropped in Nagasaki used a ________ core.
a) uranium
b) plutonium
c) radium
d) thorium
Correct answer
plutonium
11.__________ aprons are used to protect us from gamma radiations.
a) read
b) axis
c) lead
d) tied
Correct answer
lead
12.1 million electron volt = _____ev.
a) 10^-6
b) 10^4
c) 10^6
d) 10^12
Correct answer
10^6
13.Unit of radioactivity is _______________
a) roentgen
b) curie
c) becquerel
d) all the above
Correct answer
all the above
14.Marie Curie and Pierre Curie invented _______ a new substance.
a) uranium
b) pitchblende
c) radium
d) all the above
Correct answer
radium
