Recent content by sudipmaity

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Can somebody at all confirm whether it is possible to find the potential?

let 2m/hbar^2=k then -1/k grad^2 ψ +Vψ=Eψ or grad^2 ψ =k (V-E)ψ given wavefuntion is independent of θ, φ so in spherical polar grad^2= (1/r^2)δ/δr (r^2 δ/δr) I am getting (r^2 δ/δr)= r [b exp(-br)-a exp (-ar)] - [exp (-ar)-exp (-br)] next differenting the above again w.r.t r and multipying with...

Homework Statement The ground state wavefuntion of a system in spherical polar coordinates is given by: Ψ (r,θ, φ)= (A/r) [exp (-ar) - exp (-br)] where a, b, A are constants. i) Determine A as a function of a and b, so as to normalize the wavefuntion. ii) From Schrödinger equation find V (r)...

Thank you.I never post homework questions. I post past year university question only.Our class is too overcrowded for the teachers to attend to individual doubts.Solving past year question gives a feel about the type of questions that can feature in an exam.

There is no part b.This is a past year university question.I don't have the answer to it.I will be grateful to you if you could verify my calculation.

Homework Statement A cyclotron has oscillator frequency of 12×10^6 cycles /sec and dee radius 21 inches .Calculate the magnetic induction B needed to accelerate deutrons . Given e=1.6 ×10^-19 coulomb and M (21H )=3.3×10^-27 kg. Homework Equations Frequency f= Bq/2πΜ The Attempt at a Solution...

Homework Statement At about 1180K iron transforms into fcc structure from bcc structure which is also the structural form at room temperature.Assuming no change in density find the ratio of nearest neighbour distance in fcc structure to that in bcc structure. Homework Equations For fcc...

Homework Statement When a 7 3 Li nucleus is bombarded with protons α particles emerge.Calculate the kinetic energy of the alpha particle assuming the kinetic energy of the bombarding proton to be negligible. Given M (7 3 Li)=7.016004a.m.u. M (p)=1.007826a.m.u and M (α)=4.002603a.m.u. Homework...

Please BvU clarify one thing, should i consider the block of wood a rigid 3d body or a point particle??

Homework Statement Find out the degrees of freedom of a block of wood sliding on a horizontal plane. Homework Equations DoF=Nn-k N=no. of dimensions. n=no. of particles.k= no. of constraints. The Attempt at a Solution I am considering the block of wood as a rigid body made of n no. of...

Homework Statement There is this university exam question: Draw the nuclear binding energy curve and and show that energy is released when a heavy nucleus of A> 200 breaks up into two nearly equal fragments. Homework Equations See below. The Attempt at a Solution I found in an example in...

Thank you vela.Is my answer to to #1 correct??

Homework Statement Indicate the fundamental interactions through which the following processes occur.Justify. n -> p+ e- + -νe...1 p+p -> p+p+n+-n...2 π+ -> μ++ -νμ...3 γ -> e+ + e-...4 Homework EquationsThe Attempt at a Solution 1... is possible due to weak decay .electron antineutrino...

Homework Statement The nuclear masses of parent and daughter nuclei are Mp= 226.025 amu and Md=222.017 amu.Mass of alpha particle is Mα=4.002amu.Find qvalue and kinetic energy of alpha particle emitted for the alpha decay. Homework Equations Q=(Mp -Md-Mα)amu...1 Assuming nucleus to be at rest...