The work function of palladium (pd) is 5.22 ev. what is the minimum frequency of light to observe the photoelectric effect from a pd surface? if light with a 200 nm wavelength is absorbed by the pd surface, what is the velocity of the emitted electrons?

1)4×10^13Hz

2) 9.95×10-9J

Explanation:

From the image attached, it is clear that the work function of the palladium metal must first be obtained in joules. Then, the frequency is obtained from E=hf.

The kinetic energy if the photoelectrons is obtained as the difference between the energy of the photon and the work function of the metal.

True, the standard unit for volume is liters which can be represented by either a lower case "l" or a capital "l"

Ithink this is what you meant. the temperature at which a liquid begins to boil is called the boiling point. the boiling point of water is 212°f or 100°c.  and at that point will start to turn into steam (gas)