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CBSE Class 12-science Answered

State the reason, why heavy water is generally used as a moderator in a nuclear reactor.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
answered-by-expert Expert Answer
In nuclear reactors, heavy water is generally used as a moderator because unlike normal water, which absorbs neutron, it slows down neutron without absorbing it.
Answered by | 04 Jun, 2014, 03:23: PM
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CBSE 12-science - Physics
nuclei
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Asked by murshidibrahimkk | 08 Feb, 2024, 10:28: AM
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CBSE 12-science - Physics
. A nucleus of mass number 240 and having binding energy/nucleon 7.6 MeV splits into two fragments Y, Z of mass numbers 110 and 130 respectively. If the binding energy/nucleon of Y, Z is equal to 8.5 MeV each, calculate the energy released in the nuclear reaction.
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Asked by kailasks2007 | 28 Dec, 2023, 08:14: PM
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CBSE 12-science - Physics
Please answer this question. Draw a graph showing the variation of binding energy per nucleon as a function of mass number A. The binding energy per nucleon for heavy nuclei (A > 170) decreases with the increase in mass number. Explain.
Asked by varma.renu9481 | 06 Mar, 2023, 05:44: PM
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CBSE 12-science - Physics
Binding energies of 8O16 and 17Cl35 are 127.35 MeV and 289.3 MeV respectively. Which of the two nuclei are more stable?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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CBSE 12-science - Physics
What is Q- value of a nuclear reaction?
Asked by Topperlearning User | 02 Jun, 2015, 01:03: PM
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CBSE 12-science - Physics
  A neutron is absorbed by a 3 LSyntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '. nucleus with subsequent emission of Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '. - particle Write the corresponding nuclear reaction. Calculate the energy released in this reaction. Given mass of 3 LSyntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '. = 6.015126 a.m.u. Mass of 2Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '.e = 4.000 26044 a.m.u. Mass of neutron begin mathsize 14px style open parentheses blank subscript 0 straight n with 1 on top close parentheses end style = 1.0086654 a.m.u. Mass of tritium Syntax error from line 1 column 58 to line 1 column 82. Unexpected '<mstyle '. = 3.016049 a.m.u.  
Asked by Topperlearning User | 02 Jun, 2015, 10:23: AM
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CBSE 12-science - Physics
Why is nuclear fusion not possible in laboratory?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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CBSE 12-science - Physics
Express 16mg mass into equivalent energy in electron volt?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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CBSE 12-science - Physics
Draw a curve between mass number and binding energy per nucleon. Give two salient features of the curve. Hence define binding energy?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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CBSE 12-science - Physics
A nucleus Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '. undergoes β- decay and becomes Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '., Calculate the maximum kinetic energy of electrons emitted assuming that the daughter nucleus and anti- neutrino carry negligible kinetic energy. Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '.
Asked by Topperlearning User | 09 Jul, 2014, 12:48: PM
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