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41
Absorption/scattering cross-section of an element is expressed in "barn", which is equivalent to
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Answer: Option A
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42
U-235 content in enriched uranium, that is normally used in power reactors (e.g., at Tarapur atomic power plant), is about __________ percent.
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Answer: Option C
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43
Thorium-232 (a fertile material) on absorption of a neutron gets converted into __________ , which is a fissile material.
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Answer: Option C
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44
In the nuclear reaction, 93N239 → 93Pu239 + ?; the missing particle is a/an
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Answer: Option A
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45
Enrichment of uranium is done to increase the concentration of __________ in the natural uranium.
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Answer: Option C
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46
The amount of a radioactive material (having a half life of 100 years) remaining after 400 years will be __________ of its original weight.
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Answer: Option D
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47
Biological shield is provided in a nuclear power reactor to protect the __________ from radiation damage.
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Answer: Option B
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48
Biological shield is provided in a nuclear power reactor to protect the __________ from radiation damage.
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Answer: Option B
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49
In nuclear reactions, __________ number is conserved.
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Answer: Option C
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50
The atomic number of an element is equal to the number of __________ present in its atom.
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Answer: Option D
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