Suppose India had a target of producing by 2020 AD, 200,000 MW of electric power, ten percent of which was to be obtained from nuclear power plants. Suppose we are given that, on an average, the efficiency of utilization (i.e. conversion to electric energy) of thermal energy produced in a reactor was 25%. How much amount of fissionable uranium would our country need per year by 2020? Take the heat energy per fission of 235U to be about 200MeV

Suppose India had a target of producing by 2020 AD, 200,000 MW of electric power, ten percent of which was to be obtained from nuclear power plants. Suppose we are given that, on an average, the efficiency of utilization (i.e. conversion to Read More …

Calculate and compare the energy released by a) fusion of 1.0 kg of hydrogen deep within Sun and b) the fission of 1.0 kg of 235U in a fission reactor.

Calculate and compare the energy released by a) fusion of 1.0 kg of hydrogen deep within Sun and b) the fission of 1.0 kg of 235U in a fission reactor.

Obtain the maximum kinetic energy of β-particles, and the radiation frequencies of γ decays in the decay scheme shown in Fig. 13.6. You are given that m (198Au) = 197.968233 u m (198Hg) =197.966760 u

Obtain the maximum kinetic energy of β-particles, and the radiation frequencies of γ decays in the decay scheme shown in Fig. 13.6. You are given that m (198Au) = 197.968233 u m (198Hg) =197.966760 u

Consider the D−T reaction (deuterium−tritium fusion) 2 1 H +  3 1 H → 4 2 He + n

Consider the D−T reaction (deuterium−tritium fusion) 2 1H +  3 1 H → 4 2 He + n (a) Calculate the energy released in MeV in this reaction from the data:  m ( 2 1H ) = 2.014102u   m( 3  1 H ) = 3.016049u  (b) Consider the radius Read More …

Consider the fission of 238 92 U by fast neutrons. In one fission event, no neutrons are emitted and the final end products, after the beta decay of the primary fragments, are 140  58 Ce and 99 44 Ru Calculate Q for this fission process. The relevant atomic and particle masses are

Consider the fission of 238 92 U by fast neutrons. In one fission event, no neutrons are emitted and the final end products, after the beta decay of the primary fragments, are 140  58 Ce and 99 44 Ru Calculate Q for this fission process. Read More …

Under certain circumstances, a nucleus can decay by emitting a particle more massive than an α-particle. Consider the following decay processes:

Under certain circumstances, a nucleus can decay by emitting a particle more massive than an α-particle. Consider the following decay processes:

A source contains two phosphorous radio nuclides 32 15 P (T1/2 = 14.3d) and 33 15 P (T1/2 = 25.3d). Initially, 10% of the decays come from 33 15 P . How long one must wait until 90% do so?

A source contains two phosphorous radio nuclides 32 15 P (T1/2 = 14.3d) and 33 15 P (T1/2 = 25.3d). Initially, 10% of the decays come from 33 15 P . How long one must wait until 90% do so?

The neutron separation energy is defined as the energy required to remove a neutron from the nucleus. Obtain the neutron separation energies of the nuclei 41 20 Ca and 27 13 AI from the following data:

The neutron separation energy is defined as the energy required to remove a neutron from the nucleus. Obtain the neutron separation energies of the nuclei 41 20 Ca and 27 13 AI from the following data:

In a periodic table the average atomic mass of magnesium is given as 24.312 u. The average value is based on their relative natural abundance on earth. The three isotopes and their masses are 24 12 Mg (23.98504u), 25 12 Mg (24.98584u) and 26 12 Mg (25.98259u). The natural abundance of is 78.99% by mass. Calculate the abundances of other two isotopes.

In a periodic table the average atomic mass of magnesium is given as 24.312 u. The average value is based on their relative natural abundance on earth. The three isotopes and their masses are 24 12 Mg (23.98504u), 25 12 Mg (24.98584u) and 26 12 Read More …

For the β+ (positron) emission from a nucleus, there is another competing process known as electron capture (electron from an inner orbit, say, the K−shell, is captured by the nucleus and a neutrino is emitted).

For the β+ (positron) emission from a nucleus, there is another competing process known as electron capture (electron from an inner orbit, say, the K−shell, is captured by the nucleus and a neutrino is emitted).

From the relation R =  R0 A1/3 , where 0 R is a constant and A is the mass number of a nucleus, show that the nuclear matter density is nearly constant (i.e. independent of A).

From the relation R =  R0 A1/3 , where 0 R is a constant and A is the mass number of a nucleus, show that the nuclear matter density is nearly constant (i.e. independent of A).

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