General Science-Nuclear Science

General Science-Nuclear Science

Question 1 ->Click on any option to know the correct answers (सही उत्तर जानने के लिए किसी भी Choice पर क्लिक करें)
The isotope of uranium capable of sustaining chain reaction is
A
U-235
B
U-245
C
U-239
D
U-238






Question 2 ->Click on any option to know the correct answers (सही उत्तर जानने के लिए किसी भी Choice पर क्लिक करें)
Which of the following shows the masses of the three elementary particles in decreasing order?
A
Leptons, Baryons, Mesons
B
Mesons, Baryons, Leptons
C
Baryons, Mesons, Leptons
D
Leptons, Mesons Baryons
Question 3 ->Click on any option to know the correct answers (सही उत्तर जानने के लिए किसी भी Choice पर क्लिक करें)
The wavelength of X-rays is of the order of
A
10 micron
B
1 angstrom
C
1 cm
D
1 m
Question 3 Explanation: 
1 angstrom=1.0 x 10-10 meters






Question 4 ->Click on any option to know the correct answers (सही उत्तर जानने के लिए किसी भी Choice पर क्लिक करें)
In an atomic explosion, enormous energy is released which is due to
A
conversion of chemical energy into heat energy
B
conversion of mechanical energy into nuclear energy
C
conversion of mass into energy
D
conversion of neutrons into protons
Question 5 ->Click on any option to know the correct answers (सही उत्तर जानने के लिए किसी भी Choice पर क्लिक करें)
Which radioactive pollutant has recently drawn to public, due to its occurrence in the building material?
A
Thorium
B
Radium
C
Plutonium
D
Radan






Question 6 ->Click on any option to know the correct answers (सही उत्तर जानने के लिए किसी भी Choice पर क्लिक करें)
'No two electrons in an atom can have the same set of four quantum numbers' is
A
Newton's law
B
Bohr's law
C
Aufbau principle
D
Pauli's exclusion principle
Question 7 ->Click on any option to know the correct answers (सही उत्तर जानने के लिए किसी भी Choice पर क्लिक करें)
Which of the following rays are more penetrating?
A
Beta rays
B
Alpha rays
C
Gamma rays
D
X-rays






Question 8 ->Click on any option to know the correct answers (सही उत्तर जानने के लिए किसी भी Choice पर क्लिक करें)
How many colours the sunlight spectrum has?
A
Three
B
Seven
C
Four
D
Five
There are 8 questions to complete.

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