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Moderators are used in nuclear reactors to slow down the speed of neutrons. By slowing the neutrons down the probability of a neutron interacting with Uranium235 nuclei is greatly increased thereby maintaining the chain reaction. The neutrons produced by nuclear fission are very fast. At that speed the probability of the neutron causing a fission with another uranium or plutonium becomes low. Neutrons become slow by colliding with a moderator and thus the probability of further fission increases. Solid graphite, heavy water are some of the moderators used. Hence, option D is correct.
Preparation and attempt are two stages for commission of an offence. Preparation is generally not punishable. The reason for making preparation not pun...
What is the time period within which subsequent AGMs should be from the date of closing of the Financial Year?
Choose the correct code:
A. Judicial acts- S. 77
B. doli incapax- S.82
C. triffles/ slight harm- S. 93
D. communication in good faith – S. 94
Non cognizable offence means
Which of the foliowing are sources of ‘Muslim Law?"
All India Services is created by
In case of a suit filed on basis of fraud, the period of limitation begins from?
Which of the following are not inventions under Patents Act 1970?
A proposal when accepted becomes :
A, a surgeon, in good faith, communicates to a patient his opinion that he cannot live. The patient dies in consequence of the shock.
