I’m a photoelectric effect, which property of the incident light determines how much kinetic energy the ejected electrons have ? A) brightness
B) frequency
C) size of the beam
D) none of the above

One number is said to be an "order of magnitude" larger than another number if choose one: a. it is 10 times larger. b. it is 5 times larger. c. it is 3 times larger. d. it is 100 times larger. e. it is 2 times larger.