Question

Star A Intensity Star B 300 500 700 900 1100 Wavelength (nm)

          Star A
Intensity
Star B
300
500
700
900
1100
Wavelength (nm)

Added by Garrett W.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Crystal Wang

08/26/2021

Step 1

B: To calculate the constant, we need to use Wien's Law. Wien's Law states that ?peak×T=constant. In this equation, ?peak is the peak wavelength of light, T is the temperature of the star, and constant is the constant that determines the wavelength. C: Show more…

Show all steps

Thanks for your feedback!

The relation that hotter objects emit light with a shorter peak wavelength is formally described by Wien's Law: Î»peakÃ—T=constant. Just as the blackbody spectra of hot and cool light bulbs differ, the blackbody spectra of hot and cool stars differ as well. Consider two stars, Star A and Star B, identical except for their temperatures. The spectra of these stars are plotted below. Use Wien's law to calculate the answer to the following statement without looking up the constant, showing your work: (Hint: Use a ratio to find TA/TB) The hotter star is ____ times hotter than the cooler star. Star A 300 500 700 900 Wavelength (nm) Star B 1100