A. 9.31
B. 93.1
C. 931
D. 9310
Related Mcqs:
- One ‘amu’ is equivalent to___________________?
A. 9.31 MeV
B. 931 eV
C. 931 Mev
D. 931 J - Energy produced in the nuclear fission is of the order of _____________ MeV?
A. 20
B. 200
C. 1000
D. 2000 - The atomic weight and atomic number of an element are A and Z respectively. What is the number of neutrons in the atom of that element ?
A. A + Z
B. A – Z
C. A
D. Z - The ratio of neutrons to protons of an element having a mass number and atomic number of 80 and 40 respectively is ___________________?
A. 1
B. 0.5
C. 2
D. 4 - The atomic mass of an element is fractional, because ______________________?
A. Of uncertainty principle
B. It may have isobars
C. It contains neutrons
D. It may have isotopes - When the difference between mass number and atomic number of atoms of two or more elements are same, the atoms are termed as____________________?
A. Isomers
B. Isotopes
C. Isobars
D. Isotones - “Critical mass” is the minimum mass of nuclear fissile material required for the__________________?
A. Sustainment of chain reaction
B. Power generation on commercial scale
C. Economic power generation
D. None of these - The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of a proton to that of an electron?
A. 159
B. 1837
C. 2537
D. 10000 - “Critical mass” is the minimum mass of nuclear fissile material required for the_______________________?
A. Sustainment of chain reaction
B. Power generation on commercial scale
C. Economic power generation
D. None of these - The atomic number of an element is equal to the number of ______________ present in its atom?
A. Neutrons
B. Electrons
C. Protons
D. Either B. or C.
