Problems are listed in approximate order of difficulty. A single dot (•) indicates straightforward problems involving just one main concept and sometimes requiring no more than substitution of numbers in the appropriate formula. Two dots (••) identify problems that are slightly more challenging and usually involve more than one concept. Three dots (•••) indicate problems that are distinctly more challenging, either because they are intrinsically difficult or involve lengthy calculations. Needless to say, these distinctions are hard to draw and are only approximate.
• The minimum frequency of radiation that can eject photoelectrons from a certain metal is 6 × 1014Hz. What is the work function of this metal? (The result of Problem 1 will save a little trouble here.) What type of photon has this frequency? (Blue? Green? IR? etc.)
Problem 1
(a) Find the value of Planck’s constant h in eV · sec. (b) This is a useful number to know when relating a photon’s frequency to its energy. Use it to find the frequency of a 3-eV photon.
We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.