A. 1836 (approximately)
B. 1/1836 (approximately)
C. 1
D. ∞
Related Mcqs:
- 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 - Neutrons have mass approximately equal to that of _____________ atoms?
A. Hydrogen
B. Helium
C. Deuterium
D. None of these - “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 - “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 sum of masses of two nuclei produced in nuclear fission compared to the mass of original nucleus is_____________________?
A. Less
B. More
C. Same
D. Much more - 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 - The mass number of an element is not changed, when it emits _______________ radiations?
A. α & β
B. β & γ
C. γ & α
D. α, β, & γ - Energy equivalent to one atomic mass unit (amu) is ______________ MeV?
A. 9.31
B. 93.1
C. 931
D. 9310 - The critical mass of a fissionable material can be reduced by__________________?
A. Heating it
B. Cooling it
C. Surrounding it by neutron reflecting material
D. Surrounding it by neutron absorbing material
