Four different metals (Cadmium, Cobalt, Chromium, and Sodium) were subjected to a beam of monochromatic light with a wavelength of 121.2 nm. Which metal will have an electron ejected with the highest velocity?
a. Cd (νt = 9.86 x 1014 Hz)
b. Co (νt = 1.21 x 1015 Hz)
c. Cr (νt = 1.09 x 1015 Hz)
d. Na (νt = 5.77 x 1014 Hz)
highest velocity ---> the one with highest Energy
highest energy ---> highest frequency
therefrore, form the list
b. Co (νt = 1.21 x 1015 Hz)
Four different metals (Cadmium, Cobalt, Chromium, and Sodium) were subjected to a beam of monochromatic light...