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(1) Stars can be considered ideal blackbodies. A distant star is observed to emit a spectrum of light with a peak wavelength of = 95.6nm. (a) What is the temperature of this star? (b) Thanks to other measurements, we find that it gives off 4.44 x 103$ J of energy in a year. What is the radius of the star? Assume the star is a sphere. (c) Typically, stars become hotter and larger as they age. Assuming this is true, does our data indicate that this star is older or younger than our Sun? (d) What will the speed of an electron need to be in order to have a wavelength equivalent to the peak wavelength for this star?

(1) Stars can be considered ideal blackbodies. A distant star is observed to emit a spectrum of light with a peak wavelength of = 95.6nm. (a) What is the temperature of this star? (b) Thanks to other measurements, we find that it gives off 4.44 x 103$ J of energy in a year. What is the radius of the star? Assume the star is a sphere. (c) Typically, stars become hotter and larger as they age. Assuming this is true, does our data indicate that this star is older or younger than our Sun? (d) What will the speed of an electron need to be in order to have a wavelength equivalent to the peak wavelength for this star?

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(1) Stars can be considered ideal blackbodies. A distant star is observed to emit a spectrum of light with a peak wavelength of A = 95.6nm. (a) What is the temperature of this star? (b) Thanks to other measurements, we find that it gives off 4.44 x 103$ J of energy in a year. What is the radius of the star? Assume the star is a sphere. (c) Typically, stars become hotter and larger as they age. Assuming this is true, does our data indicate that this star is older or younger than our Sun? (d) What will the speed of an electron need to be in order to have a wavelength equivalent to the peak wavelength for this star?
Transcribed Image Text:(1) Stars can be considered ideal blackbodies. A distant star is observed to emit a spectrum of light with a peak wavelength of A = 95.6nm. (a) What is the temperature of this star? (b) Thanks to other measurements, we find that it gives off 4.44 x 103$ J of energy in a year. What is the radius of the star? Assume the star is a sphere. (c) Typically, stars become hotter and larger as they age. Assuming this is true, does our data indicate that this star is older or younger than our Sun? (d) What will the speed of an electron need to be in order to have a wavelength equivalent to the peak wavelength for this star?
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