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80 questions
31
Nuclear Physics
Moderate
+1.0
-0.25
Hydrogen bomb is based on the principle of—
32
Nuclear Physics
Moderate
+1.0
-0.25
Hydrogen bomb was developed by :
33
Nuclear Physics
Moderate
+1.0
-0.25
Enriched Uranium is—
34
Nuclear Physics
Moderate
+1.0
-0.25
The ultimate product of radioactive disintegration of uranium is—
35
Nuclear Physics
Moderate
+1.0
-0.25
A radioactive substance has a half‑life of four months. Three‑fourth of the substance would decay in—
36
Nuclear Physics
Moderate
+1.0
-0.25
The half‑life of a radioactive element is 5 years then the fraction of the radioactive substance that remains after 20 years is—
37
Nuclear Physics
Moderate
+1.0
-0.25
The half‑life of a radioactive substance is 10 days; it means there will be :
38
Nuclear Physics
Moderate
+1.0
-0.25
Which one of the following is not radioactive ?
39
Nuclear Physics
Moderate
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-0.25
Which Uranium isotope is used in nuclear power plants to produce electricity?
40
Nuclear Physics
Moderate
+1.0
-0.25
Which metal can be used for producing electricity?