Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) People Development & Environment Natural and Energy Resources Nuclear Energy
During nuclear fission process, the speed of neutrons is reduced to a critical value by using following moderators:
A. Deuterium
B. Graphite
C. Monazite
D. Tritium
E. Heavy Water
Choose the correct answer from the options given below:
1
A, C and D only
2
B and E only
3
B, C and D only
4
D and E only