There is a stream of neutrons with a kenetic energy of 0.0327 eV.If the half life of neutrons is 700 s,what fraction of neutrons will decays before they trael a distance of 10 m?

Find the wavelength for a beam of neutrons,whose kinetic energy is 100 eV.Given that mass of neutron = 1.676 xx 10^(-24) g and h= 6.62 xx 10^(-27) erg s. .

A single electron in an ion has ionization energy equal to 217.6eV . What is the total number of neutrons present in one ion of it?

When a car moving with 36 km h^(-1) reaches an upward inclined road of angle 30^@ ,its engine is switched off.If the co-efficient of friction is 0.1,how much distance will the car move before coming to rest ?(Take = 10 m s^(-2) ).

Obtain the de-Broglie wavelength of a neutron of kinetic energy 150 eV. As you have seen in Q.NO.11.31, an electron beam of this energy is suitable for crystal diffraction experiments. Would a neutron beam of the same energy be equally suitable? Explain (m_n=1.675xx10^-27) .

A current of 10 A is flowing in a long straight wire situated near a rectangular circuit whose two sides oflength 0.2m are parallel to the wire. One of them is at a distance of0.05m and the other at a distance of 0. IOm from the wire. The wire is in the plane of the rectangle. Find the magnetic flux through the rectangular circuit. If the current decays uniformly to zero in 0.02s, fmd the EMF induced in the circuit and indicate the direction in which the induced current flows.

For what kinetic energy of a neutron will the associated de-Broglie wavelength be 1.40 xx 10^-10m ?

The wavelength of a probe is roughly a measure of the size of a structure that it can probe in some detail. The quark structure structure of protons and neutrons appears at the minute length scale of 10^-15m or less. This structure was probed in early 1970's using high energy electron beams produced by a linear accelerator at stanford, USA. Guess what might have been the order of energy of these electrons beams. (Rest mass energy electron=0.511 MeV).

In a hydrogen atom, the electron and proton are bound at a distance of about 0.53 A: (a) Estimate the potential energy of the system in eV, if the zero of potential energy is taken at 1.06 overset @A separation of the electron from proton? (b) What is the minimum work required to free the electron, given that its kinetic energy in the orbit is half the magnitude of potential energy obtained in (a)?

A neutron beam of energy E scatters from atoms on a surface with a spacing d=0.1nm. The first maximum of intensity in the reflected beam occurs at theta=30 . What is the kinetic energy E of the beam in eV?

The mass of deutron (_1h^2) nucleus is 2.0135553 a.m.u.If the masses of proton and neutron are 1.007275 a.m.u. and 1.008665 a.m.u. respectrively.Calculate the mass defect,the packing fraction,binding energy and binding energy per nculeon.