Physics II Lab w answers_Part_46

Physics II Lab w answers_Part_46 - 1 “ Physics” M...

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103 8. Look up the value of work function of tungsten and calculate the cut off frequency ° o for tungsten. 9. We have taken the tungsten filament to be a black body radiator. What qualitative change would we expect if it were taken to be an imperfect black body? 10. What is the significance of the Planck’ s constant in physics? References:
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Unformatted text preview: 1. “ Physics”, M. Alonso and J. Finn, Addison Wesley 1992. 2. “ Modern Physics “ , A. Beiser, McGraw Hill Inc., 1995. 104 Experiment 16 Planck’s constant Observations and Results 1. Calibration of R Vs T : R o (calculated) = _____________________ Ω Table 1. T ( o C) R( Ω ) Plot a graph of R Vs T and fit a straight line....
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