PH 122 Lecture Notes - Solar Cell, Muon Neutrino, Tau Neutrino
Document Summary
Same as a baseball pitched at 60 mph. 6 trillion pass through a human hand per second. A proton is made of two up quarks and one down quark. A neutron is made of one up quark and two down quarks. Three laser beams have wavelengths 1 = 400 nm, 2 = 600 nm, and 3 = 800 nm. The power of each laser beam is 1 w. Rank in order, from largest to smallest, the photon energies e1, e2, and e3 in these three laser beams. Rank in order, from largest to smallest, the number of photons per second n1, n2, and n3 delivered by the three laser beams. A solar cell is illuminated with 2. 0 w of light. Is the maximum possible current greater with 2. 0. An x-ray tube is powered by a high-voltage supply that delivers 700 w to the tube. The tube converts 1% of this power into x rays of wavelength 0. 030 nm.
