- Question 13 1 Point When Light Of Frequency 7 45 X 1015 Hz Is Incident On A Metal Surface The Maximum Kinetic Energy 1 (24.11 KiB) Viewed 57 times
- Question 13 1 Point When Light Of Frequency 7 45 X 1015 Hz Is Incident On A Metal Surface The Maximum Kinetic Energy 2 (18.57 KiB) Viewed 57 times
- Question 13 1 Point When Light Of Frequency 7 45 X 1015 Hz Is Incident On A Metal Surface The Maximum Kinetic Energy 3 (24.36 KiB) Viewed 57 times
- Question 13 1 Point When Light Of Frequency 7 45 X 1015 Hz Is Incident On A Metal Surface The Maximum Kinetic Energy 4 (61.77 KiB) Viewed 57 times
3 > 1 a 1 12 Question 14 (1 point) A metal has a work function of 1.97 eV. What is the maximum kinetic energy, in eV, of the ejected electrons if the wavelength of the incident light is 3.07 x 10-7 m Record your answer to two digits after the decimal point. No units Your Answer: Answer
Question 15 (1 point) When light that has a frequency of 8.41 x 1015Hz is incident on a polished surface the electrons that are ejected from the surface have a maximum speed of 4.58x 105 m/s. The work function of the metal surface, in eV, is_ Round your answer to two digits after the decimal point. No units Your Answer: Answer
Question 17 (1 point) In a particular photocopier, the photosensitive drum is uniformly charged and has a work function of 8.47eV. The bulb in the photocopier emits electromagnetic radiation (EMR) that has a frequency of 9.21 x 1015 Hz. Electrons are ejected only at the locations where photons hit the drum. Toner is negatively charged black powder which is stored on positively charged plastic beads inside the toner cartridge. These charges are very small. After the EMR has shone on the drum, only the areas that are positively charged attract toner particles. The paper that rolls past the drum is charged such that it attracts the toner particles from the drum. If one of the beads has a net positive charge of 7.7 x 10-15C and each toner particle has an excess of 221 electrons, then the number of toner particles that would neutralize a bead is ...........particles What is the maximum kinetic energy of the electrons ejected from the drum, in eV. Round your answer to two digits after the decimal point. No units Your Answer: