Two stars have the following observed values of wavelength corresponding to maximum…

PHYSICS · Subjective · AP · Physics 2: Algebra-based · Modern Physics · Modern Physics

Problem

Two stars have the following observed values of wavelength corresponding to maximum intensity: Star A:

360\,\text{nm}\,\pm\,10\,\text{nm}

Star B:

720\,\text{nm}\,\pm\,20\,\text{nm}

(a) Determine the surface temperature of each star. (b) Estimate the percentage uncertainty in each temperature arising from the quoted wavelength uncertainty. (c) Identify which star is hotter and comment on the likely colour difference between the two.

Related theory

Measurement Errors
Blackbody Radiation
Quantum Origins
Radiation laws
The greenhouse effect
Black body radiation
Waves
Thermal Properties of Matter

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