1.a)Write the frequency values of different polarizations in dielectrics.b)A problem was given based on the equation in this problem, refractive index was given.2. A particle of mass m is in a central force, r = r0e-iθ.a. Is the angular momentum is conserved.b. Find the law of force.c. Find the total energy.d. 3. O15decays by positive beta decay into N15fine the Emax interms of their columbic attractions delta(Ecoul) .4. Rotational partition function problem: Energy is given from that values we have to find the bond lengths.A). j=2. B)j = 4 to j =2 etc.5. It is practically proved that the Hydrogen atom contributes to the rotational energies at 100K.Using this data find the Bond length of Hydrogen.6. f(z) = tanh z; fine the singularities, natures of singularities and residues.7. One problem on quark theory.8. One problem on Fermi – gold transitions, where the transitions are valid or not.9. A problem on particle decay combined with quantum mechanics.10. A particle falling from a height (?) onto to a square plane sheet of charge density(?), find the force on the ?