Cherie is doing an experiment; she needs to heat a small sample to 700 K. There is only one oven available with a maximum temperature of 400 K. Could she heat the sample to 700 K by using a large lens to focus the radiation from the oven onto the sample?
a) Yes, if the volume of the oven is at least 7/4 the volume of the sample.
b) Yes, if the area of the front of the oven is at least 7/4 the area of the front of the sample.
c) Yes, if the sample is placed at the focal point of the lens.
d) No, because it would violate the conservation of energy.
e) No, because it would violate the second law of thermodynamics.