Task 3: Quantum Theory in = 6.63 x 10-34.: . s; c=3.00 X lsmfs; me = 9.11 x 10-31 kg 1. A potassium surface is illuminated by a monochromatic laser light with a wavelength of 400 nm. Determine the maximum speed of a photoelectron emitted from this surface if the potassium surface has a work function of 2.30 eV. me = 9.11 X 105'1 kg 2. Aphoton has a frequency of 7.50 x 1014 Hz. a. Determine the energy and the momentum of this photon. b. If all the energy of this photon were to be converted to mass, determine the equivalent mass for the particle. c. A microscopic specimen has a wavelength of 3.2 x 10min and a speed of 1.] x 105 mix. Determine the mass of this microscopic specimen. 3. In a TV tube an electric potential difference accelerates electrons from a rest position towards a screen. Just before reaching the screen. the electrons have a wavelength of 1.2 x 1011111. Determine the kinetic energy of the electrons just before they reach the screen. Your nal answer should have units of eV