Question 19 (2 points) Calculate the de Broglie wavelength of an electron with a momentum of (4.3x10^-25) kg . m/s. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10 Answer units D Add attachments to support your workQuestion 22 (4 points) Cesium (work function of 3.12 x 107>J) is exposed to EM radiation with a wavelength of (4.2x10^-7) m. Determine whether any electrons will be emitted, and, if they are, determine their maximum kinetic energy. Note: If electrons will not be emitted enter your answer as -1 x 10" J. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10 Answer units Add attachments to support your workQuestion 23 (5 points) Compare and contrast the pattern that would be seen when particles are passed through a double-slit versus the interference pattern seen when waves are passed through a double-slit. What type of pattern is demonstrated when unobserved electrons are passed through a double-slit? Explain the significance of this finding. A/