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If the half lives of a radioactive element for α and β decay are 4 years and 12 years respectively, the ratio of its initial activity that after 12 years will be If the half lives of a radioactive element for α and β decay are 4 years and 12 years respectively the ratio of [...]

A nucleus of mass number 220 decays by α decay. The energy released in the reaction is 5 MeV. The kinetic energy of an α- particle is A nucleus of mass number 220 decays by α decay. The energy released in the reaction is 5 MeV. The kinetic energy of an α- particle is November [...]

N1 atoms of a radioactive element emit N2 beta particles per second. The decay constant of the element is (in s^-1) N1 atoms of a radioactive element emit N2 beta particles per second. The decay constant of the element is (in s^-1) November 28, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics [...]

Calculate power output of U92235 reactor, if it takes 30 days to use up 2 kg of fuel, and if each fission gives 185 MeV of useable energy. Avogadro’s number = 6 x 10^23 /mol? and if each fission gives 185 MeV of useable energy. Avogadro's number = 6 x 10^23 /mol? Calculate power output [...]

The strength of 11.2 volume solution of H2O2 is (Given that molar mass of H = 1 g/mol and O = 16 g/mol) (a) 13.6% (b) 3.4% (c) 34% The strength of 11.2 volume solution of H2O2 is (Given that molar mass of H = 1 g/mol and O = 16 g/mol) (a) 13.6% (b) [...]

The covalent alkaline earth metal hallide (X = Cl, Br, I) is (a) CaX2 (b) SrX2 (c) BeX2 (d) MgX2 Br I) is (a) CaX2 (b) SrX2 (c) BeX2 (d) MgX2 The covalent alkaline earth metal hallide (X = Cl November 28, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

The correct order of hydration enthalpies of alkali metal ions is (a) Li + > Na + > K + > Rb + > Cs + The correct order of hydration enthalpies of alkali metal ions is (a) Li + > Na + > K + > Rb + > Cs + November 28, 2020 [...]

Diborane (B2H6) reacts independently with O2 and H2O to produce, respectively (a) HBO2 and H3BO3 (b) H3BO3 and B2O3 Diborane (B2H6) reacts independently with O2 and H2O to produce respectively (a) HBO2 and H3BO3 (b) H3BO3 and B2O3 November 28, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

What is the amount of energy released by deuterium and tritium fusion? What is the amount of energy released by deuterium and tritium fusion? November 28, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter 31 - Nuclei , Physics ,

The fossil bone has a 14C : 12C ratio, which is 1/16] of that in a living animal bone. If the half life time of 14C is 5730 years, then the age of the fossil bone is The fossil bone has a 14C : 12C ratio then the age of the fossil bone is which [...]