Heavy water has maximum density at ______________ °C ?
Heavy water has maximum density at ______________ °C ?
A. 4
B. 11.6
C. 0
D. 18.6
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Which is a fertile nuclear fuel ?
Which is a fertile nuclear fuel ?A. U-233
B. U-235
C. Pu-239
D. Th-232Commercial power generation from fusion reactor is not yet possible, because___________________?
Commercial power generation from fusion reactor is not yet possible, because___________________?A. It is difficult to control nuclear fusion reaction
B. The fuel required (i.e., deuterium & tritium) is scarce
C. It is difficult to initiate fusion reaction
D. Quantity of fuel required for initiating fusion reaction is prohibitively highWhich of the following is the most harmful for the human being ?
Which of the following is the most harmful for the human being ?A. β-rays
B. X-rays
C. γ-rays
D. Ultra violet raysWhat is the average life of a radioactive atom having a ‘half life period’ of T ?
What is the average life of a radioactive atom having a ‘half life period’ of T ?A. 1.44 T
B. 0.144 T
C. 14.4 T
D. 2TThe main ore of uranium is ______________________?
The main ore of uranium is ______________________?A. Pitchblende
B. Monazite sand
C. Cassiterite
D. ChalcopyritePercentage of U-238 in natural uranium is around__________________?
Percentage of U-238 in natural uranium is around__________________?A. 0.71
B. 99.29
C. 0.015
D. 29.71