Practice 4.2

  Flag question: Question 1 Question 1 1 pts

What is the peak wavelength of light coming from a star with a temperature of 5300 K?
(Submit your answer in nanometers. Remember 1nm = 10-9 m)

 Flag question: Question 2 Question 2 1 pts

What is the peak wavelength of light coming from a star with a temperature of 2500 K?

(Submit your answer in nanometers. Remember 1nm = 10-9 m)

Flag question: Question 3 Question 3 1 pts

What is the temperature of a star (in Kelvin) if its peak wavelength is 425 nm?  

Flag question: Question 4 Question 4 1 pts

Star A is 3 times hotter than Star B. How many times brighter is Star A than Star B? 

Flag question: Question 5 Question 5 1 pts

Star A is 200 times brighter than star B. How many times hotter is Star A than Star B?