A radio nuclide with half-life `T` days emits `beta`-particles of average kinetic energy `E J`. The radionuclide is used as a source in a machine which generates electric energy with efficiency `25%`. The number of moles of the nuclide required to generate electrical energy at an initial rate `P` is `n=(yTP)/(EN ln(2))` where `'y'` is

A radioactive with half life T=693.1 days. Emits beta -particles of average kinetic energy E=8.4xx10^(-14) joule. This radionuclide is used as source in a machine which generates electrical energy with efficiency eta=12.6% . Number of moles of the nuclide required to generate electrical energy at an initial rate is P=441 KW , is nxx10^(n) then find out value of (n)/(m) (log_(e )2=0.6931)N_(A)=6.023xx10^(23)

A radioactive with half life T=693.1 days. Emits beta -particles of average kinetic energy E=8.4xx10^(-14) joule. This radionuclide is used as source in a machine which generates electrical energy with efficiency eta=12.6% . Number of moles of the nuclide required to generate electrical energy at an initial rate is P=441 KW , is nxx10^(n) then find out value of (n)/(m) (log_(e )2=0.6931)N_(A)=6.023xx10^(23)

A radio nuclide with half life T = 69.31 second emits beta -particles of average kinetic energy E = 11.25eV . At an instant concentration of beta -particles at distance, r = 2m from nuclide is n = 3 xx 10^(13) per m^(3) . (i) Calculate number of nuclei in the nuclide at that instant. (ii) If a small circular plate is placed at distance r from nuclide such that beta -particles strike the plate normally and come to rest, calculate pressure experienced by the plate due to collision of beta -particle. (Mass of beta -particle = 9 xx 10^(-31)kg ) (log_(e) 2 = 0.693)

Polonium ( _84^210 Po ) emits _2^4He particles and is converted into lead ( _82^206Pb ). This reaction is used for producing electric power in a space mission. Po^210 has half-life of 138.6 days. Assuming an efficiency of 10% for the thermoelectric machine, how much ^210Po is required to produce 1.2xx10^7J of electric energy per day at the end of 693 days. Also find the initial activity of the material. Given : Masses of nuclei ^210Po=209.98264 amu, ^206Pb=205.97440 amu, _2^4He=4.00260 amu, 1 am u=931 MeV//c^2 and Avogadro's number = 6xx10^23//mol

The cyclotron is a device which is used to accelerate charged particles such as protons, deutrons, alpha particles, etc. to very high energy. The principle on which a cyclotron works is based on the fact that an electric field can accelerate a charged particle and a magnetic field can throw it into a circular orbit. A particle of charge +q experiences a force qE in an electric field E and this force is independent of velocity of the particle. The particle is accelerated in the direction of the magnetic field. On the other hand, a magnetic field at right angles to the direction of motion of the particle throws the particle in a circular orbit in which the particle revolves with a frequency that does not depend on its speed. A modest potential difference is used as a sources of electric field. If a charged particle is made to pass through this potential difference a number of times, it will acquire an enormous by large velocity and hence kinetic energy. The working of a cyclotron is based on the fact that

The cyclotron is a device which is used to accelerate charged particles such as protons, deutrons, alpha particles, etc. to very high energy. The principle on which a cyclotron works is based on the fact that an electric field can accelerate a charged particle and a magnetic field can throw it into a circular orbit. A particle of charge +q experiences a force qE in an electric field E and this force is independent of velocity of the particle. The particle is accelerated in the direction of the magnetic field. On the other hand, a magnetic field at right angles to the direction of motion of the particle throws the particle in a circular orbit in which the particle revolves with a frequency that does not depend on its speed. A modest potential difference is used as a sources of electric field. If a charged particle is made to pass through this potential difference a number of times, it will acquire an enormous by large velocity and hence kinetic energy. Cyclotron is not suitable for accelerating

The cyclotron is a device which is used to accelerate charged particles such as protons, deutrons, alpha particles, etc. to very high energy. The principle on which a cyclotron works is based on the fact that an electric field can accelerate a charged particle and a magnetic field can throw it into a circular orbit. A particle of charge +q experiences a force qE in an electric field E and this force is independent of velocity of the particle. The particle is accelerated in the direction of the magnetic field. On the other hand, a magnetic field at right angles to the direction of motion of the particle throws the particle in a circular orbit in which the particle revolves with a frequency that does not depend on its speed. A modest potential difference is used as a sources of electric field. If a charged particle is made to pass through this potential difference a number of times, it will acquire an enormous by large velocity and hence kinetic energy. The working of a cyclotron is based on the fact that

The cyclotron is a device which is used to accelerate charged particles such as protons, deutrons, alpha particles, etc. to very high energy. The principle on which a cyclotron works is based on the fact that an electric field can accelerate a charged particle and a magnetic field can throw it into a circular orbit. A particle of charge +q experiences a force qE in an electric field E and this force is independent of velocity of the particle. The particle is accelerated in the direction of the magnetic field. On the other hand, a magnetic field at right angles to the direction of motion of the particle throws the particle in a circular orbit in which the particle revolves with a frequency that does not depend on its speed. A modest potential difference is used as a sources of electric field. If a charged particle is made to pass through this potential difference a number of times, it will acquire an enormous by large velocity and hence kinetic energy. Cyclotron is not suitable for accelerating