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Molecular Physics | Thermodynamics Answers

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Glass of relative permitivity 4 is kept in an external electric field of magnitude 102 Vm−1. Calculate the polarisation vector, molecular/atomic polarisability and the refractive index of the glass.
Using the first law of the thermodynamics for an adiabatic processes, establish the relation PV power of gama =K Where gama is the ratio pf the heat capacity of constant pressure to that at constant volume .plot this equation on a P-v diagram .What will be its slope?
Derive an expression for the work done by a gaseous system for an isothermal expansion of an ideal gas.
Explain the working of a platinum resistance thermometer with the help of a neat am labelled diagram.
A stretched string of mass 20 g vibrates with a frequency of 30 Hz in its fundamental mode and the supports are 40 my apart. The amplitude of vibrating at the antinode is 4 cm .Calculate the velocity of propagation of the wave in the string as well as the tension in it.
The linear density of a vibrating string 1.3×1/10000 kg/m .A transverse wave is propagation on the string &is describe by the equation y (x,t)= 0.021sin (30t-x) where x&y is in meter &t is in second calculate the tension in the string.
The time period of a simple pendulum ,called 'second pendulum ' is 2 s .Calculate the length ,angular frequency And frequency of the pendulum ?
a Simple harmonic motion is represented by x(t)=a cos(omega)t obtain expression for velocity and accel;eration of the oscillationr Also plot thevtime variation of displacement, velocity & acceleration of the oscillator.
The time period of a simple pendulum ,called 'second pendulum ' is 2 s .Calculate the length ,angular frequency And frequency of the pendulum .What is the different b/w a simple pendulum & a compound pendulum?
Explain the working of a platinum resistance thermometer with the help of a neat and labelled diagram.