In the Doppler effect for electromagnetic waves, which of the following gives the greatest shift in frequency?
a. the source moving toward the non-moving observer at speed v
b. the observer moving toward the non-moving source at speed v
c. the source moving toward the approaching observer, both at speed v /2
d. All of the above give the same shift.
Question 2
What is the temperature of a system in thermal equilibrium with another system made up of water and steam at one atmosphere of pressure?
a. 0F
c. 0 K
b. 273 K
d. 100C