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All the atoms of the world comprise of electrons, proton & neutron except that of __________ atom in which neutron is absent.
All the atoms of the world comprise of electrons, proton & neutron except that of __________ atom in which neutron is absent.
A moderator, apart from its high neutron slowing power, and low non-productive neutron, should be
A moving neutron collides with a stationary α-particle. The fraction of the kinetic energy lost by the neutron is
The intensity of the initial neutron in neutron diffraction is reduced by a factor of ________
Each neutron produces _________ neutron(s) per fission.
A neutron scatters elastically from a heavy nucleus. The initial and final states of the neutron have the
Number of secondary neutron emitted on fission of an atom of U-235 by slow neutron bombardment is
There are seven students A, B, C, D, E, F and G, who have got highest marks in aggregate in a class. They are ranked as 1 to 7 (not necessarily in the same order). F has neither got highest nor lowest rank. D has got one rank higher than B. There are three students who have got higher marks than C and G is one of them. A has got higher rank than G but not the highest one. Which students have got the highest and the lowest rank?
Given below are three quantities named A, B and C. Based on the given information, determine the relation among the three quantities. Quantity A∶  A 30 litre mixture of wine and water has wine and water in the ratio 5∶ 7. How much water must be drawn off so that the ratio of wine and water becomes 25∶ 19? Quantity B∶ A 35 litre mixture of wine and water has wine and water in the ratio 1∶ 3. How much water must be drawn off so that the ratio of wine and water becomes 1.75∶ 3.35? Quantity C∶ A 27 litre mixture of wine and water has wine and water in the ratio 3∶ 2. How much water must be drawn off so that the ratio of wine and water becomes 81∶ 11?