Photoelectric effect question, help please, thanks!
In the standard experiment the stopping voltage is measured for several wavelengths of incident light. In this apparatus the photocathode is metallic potassium. Suppose that the apparatus has not been used for some time and that its...
hello all,
i've been working on this whole day, still can't figure out, any help would be appreciated! thanks a bunch!
Problem as follows:
Bill is farsighted and has a near point located 140 cm from his eyes. Anne is also farsighted, but her near point is 75.6 cm from her eyes. Both have...