48 kJ of energy is produced per minute in a nuclear reactor. Calculate the number of fission which would be taking place in a reactor per second. If the energy released per fission is `3.2xx10^-11J`.

Calculate the energy released by the fission of 1.0 kg of "^235U in a fission reactor.

In which case the energy released per nuclear is more: In fission or fusion?

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.

A heavy nucleus P of mass number of 240 and binding energy 7.6 MeV per nucleon splits into two nuclie Q and R of mass numbers 110 and 130 and binding energy per nucleon 8.5 MeV and 8.4 MeV, respectively. Calculate the energy released in the fission.

A coil has an inductance of 1.5 xx 10^-2 H. Calculate the e.m.f. induced, when current in the coil changes at the rate 200 ampere per second.

A farmer mixes two brands P and Q of cattle feed. Brand P, costing Rs 250 per bag, contains 3 units of nutritional element A, 2.5 units of element B and 2 units of element C. Brand Q costing Rs 200 per bag contains 1.5 units of nutritional element A, 11.25 units of element B and 3 units of element C. The minimum requirements of nutrients A,B and C are 18 units, 45 units and 24 units respectively. Determine the number of bags of each brand which should be mixed in order to produce a mixture having a minimum cost per bag? What is the minimum cost of the mixture per bag?

If the ionization energy of He^(+) is 19.6xx10^(-18) J per atom then the energy of Be^(3+) ion in the second stationary state is :