When cesium metal is illuminated with light of wavelength 300 nm, the photoelectrons emitted have a maximum kinetic energy of2.23eV. Find (a) the work function of cesium and (b) the stopping potential if the inci-dent light has a wavelength of400nm.

Starting with only the balmer series light (visible light), how could we ensure that the solar panels generate a current that mark can use for his power station? a)by gradually increasing the brightness (amount) of light that we shine on it. b)by gradually increasing the frequency of the light we shine on it. c)by gradually increasing the wavelength of the light that we shine on it.

How to tell if a molecule is polar or nonpolar with electronegativity

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?