10th Science Chapter-06 Nuclear Physics Creative One Mark Question and Answers Part-01
10th Science Chapter-06 Nuclear Physics Creative One Mark Question and Answers Part-01
01.Kamini reactor is located at ____________
a) virudunagar
b) chennai
c) kanchipuram
d) kalpakkam
Correct answer
kalpakkam
02.______________ rays have very less ionization power.
a) r
b) s
c) k
d) y
Correct answer
y
03.The activity of 1 g of radium is _____
a) 224
b) 225
c) 226
d) 227
Correct answer
226
04.James Chadwick discovered ______
a) protons
b) electrons
c) neutrons
d) positrons
Correct answer
neutrons
05._____________ isotope is used for the treatment of cancer.
a) radio cobalt
b) fm cobalt
c) sodium
d) iodine
Correct answer
radio cobalt
06.In a _______ reaction the number of neutrons multiply rapidly.
a) chain
b) normal
c) functional
d) none of these
Correct answer
chain
07.All stars contain a large amount of _______
a) oxygen
b) uranium
c) radium
d) none of the above
Correct answer
none of the above
08.In terms of roentgen, the safe limit of receiving the radiation is about ______ mR per week.
a) 100
b) 200
c) 300
d) 400
Correct answer
100
09.The average energy released in each fusion is ______
a) 38.4 x 10^12
b) 3.84 x 10^12
c) 3.84 x 10^-11
d) 3.84 x 10^-12
Correct answer
3.84 x 10^-12
10.__________________ radioactive substances have been discovered so far.
a) 27
b) 28
c) 29
d) 30
Correct answer
29
11.In ______ John Dalton considered that elements consist of atoms which are identical in nature.
a) 1800
b) 1801
c) 1802
d) 1803
Correct answer
1803
12.___________ discovered cathode rays.
a) J.J. Thomson
b) Robert Bruke
c) Robert Jin
d) none of these
Correct answer
J.J. Thomson
13.Nuclear fission leads to emission of _____ radiation.
a) alpha
b) beta
c) gamma
d) none of the above
Correct answer
gamma
14.During an alpha decay, the atomic number decreases by ______
a) one
b) two
c) three
d) four
Correct answer
two
15._______ rays have the highest penetrating power.
a) x
b) y
c) r
d) s
Correct answer
y
