Which moon orbits a body only twice as big as it is?
A) Triton B) Charon C) our Moon D) Mimas E) Miranda
Question 2
The energies of two photons you might detect emitted by hydrogen atoms are 10.2 and 2.1 eV. Which photon has the longest wavelength?
A) the 10 eV photon
B) the 2.1 eV photon
C) They both have the same wavelength.