A photocell, such as the one illustrated in Figure 6.8(b), is a device used to measure t...

A photocell, such as the one illustrated in Figure 6.8(b), is a device used to measure the intensity of light. In a certain experiment, when light of wavelength 630 nm is directed onto the photocell, electrons are emitted at the rate of Coulombs/sec. Assume that each photon that impinges on the photocell emits one electron. How many photons per second are striking the photocell? How much energy per second is the photocell absorbing?