Write a short note on Thermal ionization.
cse-1994-p1-q8-a
What is an adiabatic demagnetisation cycle? Discuss the cycle in terms of M, H indicator diagram.
cse-1994-subject-04-005
Derive expressions for the Maxwellian distribution of
(i) One component of velocities
(ii) one component of momenta, in the molecules of an ideal gas.
cse-1994-subject-04-006
Show that done in a reversible expansion of an ideal gas from volume V_1 to V_2 is greater than the corresponding work done in an irreversible expansion against a constant pressure P_2.
cse-1994-subject-04-002
Write a short note on Equipartition of energy.
cse-1994-p1-q8-b
Calculate the Joule-Thomson coefficient for nitrogen gas at 293 K and 100 atm. pressure taking C_p = 8.21\text{ cal deg}^{-1}\text{ mole}^{-1} a = 1.39\text{ liter}^2\text{ atm-mole}^{-2} and b = 3.92 \times 10^{-2}\text{ liter mole}^{-1}
cse-1994-subject-04-001
Obtain expressions for electrostatic scalar potential magnetostatic vector potential and electromagnetic potential. How are the first two related to the third? Explain the idea of retarded potential.
cse-1994-subject-03-002
State and prove Poynting's theorem. Discuss the physical significance of each term in resulting equation.
cse-1994-subject-03-009
Show that the electromagnetic waves in free space are transverse in nature.
cse-1994-subject-03-008
If the avenge distance between the sun and earth is 1.5 \times 10^{11} m, find the avenge solar energy flux and the earth (solar constant) given the power radiated by the sun = 3.8 \times 10^{26} watt.
cse-1994-subject-03-007
Calculate \omega_0 \Delta \omega and quality factor Q for LCR parallel resonant circuit given the values C = 0.4 \muF, L = 4 mH and R = 1 K\Omega.
cse-1994-subject-03-006
A harmonic e.m.f. is applied to a parallel resonant circuit containing resistance R, inductance L and capacitance C. Derive expressions for resonance, angular frequency \omega_0 and the band width \Delta \omega.
cse-1994-subject-03-005
Show that energy stored in a capacitor is \frac{1}{2} \frac{q^2}{C} while the energy stored in the inductor is \frac{1}{2} L i^2, where the symbols have their usual meaning.
cse-1994-subject-03-004
Using Laplace's equation obtain an expression for the potential between two coaxial cylinders.
cse-1994-subject-03-003
Show that it is possible to arrive at Stefan-Boltzmann law with the aid of Carnot's cycle using black body radiation as the working substance.
cse-1994-subject-03-001
Calculate the tension required to generate stationary waves with 4 loops in a string of length 1.0\text{ meter}, and mass 0.30\text{ g.} fixed to a tuning fork vibrating with frequency 200\text{ Hz}.
cse-1994-subject-02-003
Write a short note on Holography.
cse-1994-p1-q8-c
A particle of mass 5g lies in a potential field given by U = (40x^2 + 80)\text{ erg/g}. Determine the frequency and time period of oscillations.
cse-1994-subject-02-001
Briefly discuss the feasibility of a laser, emitting monochromatic Fermions, such as electrons.
cse-1994-subject-02-011
Distinguish between phase velocity and group velocity. Calling group velocity C and phade velocity C in a medium of refractive index n, establish the relation C_g = C \left(1 + \frac{\lambda}{n} \frac{dn}{d\lambda}\right) where \lambda refers to the wavelength of the related light in vacuum
cse-1994-subject-02-002