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Part A Spacecraft instruments measure the radiation from an asteroid, and the data show that the
power per unit wavelength peaks at 40 m Assuming the asteroid is a blackbody, find its surface
temperature Express your answer using two significant figures. ST- Submit Incorrect; Try
Again; 4 attempts remaining
Solution
Here,
34.18)
wavelength = 40 um
let the temperature is T
Using Wien's displcement law
wavlength = b/T
40 *10^-6 = (2.898 *10^-3)/T
solving for T
T = 72.45 K
the temperature of the surafce is 72.45 K

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Part A Spacecraft instruments measure the radiation from an asteroid,.pdf

  • 1. Part A Spacecraft instruments measure the radiation from an asteroid, and the data show that the power per unit wavelength peaks at 40 m Assuming the asteroid is a blackbody, find its surface temperature Express your answer using two significant figures. ST- Submit Incorrect; Try Again; 4 attempts remaining Solution Here, 34.18) wavelength = 40 um let the temperature is T Using Wien's displcement law wavlength = b/T 40 *10^-6 = (2.898 *10^-3)/T solving for T T = 72.45 K the temperature of the surafce is 72.45 K