A tungsten filament of a typical incandescent lightbulb operates at a temperature near 3000 K. At what wavelength is the intensity at its maximum?

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Q: Solar energy strikes the top of the Earth’s atmosphere at 343 W m−2. About 30 per cent of this…

A: Given: Solar energy at Earth’s atmosphere α = 343 W m-2 Reflected energy = 30 % σ = 5.67×10-8…

Q: Find Vrms for a nitrogen gas N₂ at 33°C. 4. 622.0 m/s 479.0 m/s 462.4 m/s ABC A. B. C. 1--1 7 N…

A: Given data: Temperature, T=330C=273+33=306 K Our question is to find the vrms of the N2 molecule.

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A: (a)    Calculate the total black body radiation emission when the source is at 5800 K.

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Q: 4) Fig. 34 shows a graph indicating the maxwellian distribution of speeds of gas molecul different…

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Q: The temperature of the filament of an incandescent lightbulb is 2500 K. Assuming the filament to be…

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Q: (a) The star Dubhe emits radiation with a peak wavelength of 622 nm. What is its surface temperature…

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Wien's displacement law

Students often get confused between Wien's displacement law and Planck's radiation law. Although both are historically related, yet they are conceptually different. Planck's law helps determine the spectrum of a blackbody, while Wien's law determines the relationship between peak wavelength and temperature.