For a black body, the temperature and the wavelength of the emission maximum, Amax, are related by Wein's Law, expressed as: T/°C λmax/nm Values of Amax from a small pinhole in an electrically heated container were determined at a series of temperatures. The results are given below. Deduce the value of Planck's constant. 1000 2181 c = 3.00 x 108 m/s 1500 1600 hc 4.965k AmaxT=- 2000 1240 k= 1.38 x 10-34J.s 2500 1035 3000 878 3500 763
For a black body, the temperature and the wavelength of the emission maximum, Amax, are related by Wein's Law, expressed as: T/°C λmax/nm Values of Amax from a small pinhole in an electrically heated container were determined at a series of temperatures. The results are given below. Deduce the value of Planck's constant. 1000 2181 c = 3.00 x 108 m/s 1500 1600 hc 4.965k AmaxT=- 2000 1240 k= 1.38 x 10-34J.s 2500 1035 3000 878 3500 763
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Transcribed Image Text:For a black body, the temperature and the wavelength of the emission maximum, Amax, are related by Wein's
Law, expressed as:
T/°C
λmax/nm
Values of Amax from a small pinhole in an electrically heated container were determined at a series of
temperatures. The results are given below. Deduce the value of Planck's constant.
1000
2181
c = 3.00 x 108 m/s
1500
1600
λmaxT =
2000
1240
k= 1.38 x 10-34 J-S
hc
4.965k
2500
1035
3000
878
3500
763
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