Phy May 2002 102 D

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.,,~ pqrticle is moving in a one .. dimension8J potential box of infinite heigh -'--;,'.t, .• ~.~.i: .. _ ":_~"""=

is the physical significance of the wavefunction \jI ? 14

, Derive Schrodinger's equation for. stationary states. What

What is Poynting vector! Explain.

propagation of em waves in dielectric media. 14

State and explain MaXwell equations. Give analysis of

oscillations of frequency 1000 Hz.

value of the capacity of the Capacitor required to generate

Given a coil. of L= 5 mH and resistance 0.5 .0, Calculate

What is logarithmic decrement? Explain.

Give the theory of the oscillatory discharge of a capacitor through a circuit containing an inductance and a resistance, Obtain the expression for the frequency.

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ttempt five questiolls in all. selecting at least two 'questions from each parI.

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'Particle in a Box' Problem

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5. (Cl)

Matter waves

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Part-B

Dielectrics

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lowest state of energy ?:~~. 4. \:'rite short notes on any three:

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probability of finding the pa;ticle'wii~ 0.5 nm at the centre of the box wh~.

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Point defects in solids.

Band theory of solids

Reciprocal lattices

Lattice heat capacity models

"te short notes on any three:

300 K is 9.8 X 1015,

nand p at 300 K. Number of intrinsic carriers at

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Consider a sample of n-type Si with Nd == 1021/m,. Find

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