ship is traveling at a speed of 0.800c relative to Tatooine,in the same relative ip be directed toward o away from the e pursuit ship?(b)What is the speed of the cruiser relativeto the pursuit ship? 5.A source of electromagnetic radiation is moving in a radial direction relative to you.The is1.times the in the rest frame of the source What is the speed of the source relativeto you?Is the source moving toward you or away from you? 6.(a)At what speed is the momentum of a particle twice as great as the result obtained from the nonrelativistic expression.Express your answer in terms of the speed of light.(b)A force is applied to a particle along its direction ofmo ion.At what eed is s the magnitude of force ired to produce a given acceleration twice as great as the force required to produce the same acceleration when the particle is at rest?Express your answer in terms of the speed of light. 7.What is the speed of a particle whose kinetic energy is equal to (a) its rest energy and (b)five times its rest energy? Chapter Two:Photon:Light Waves behaving as particles 1.Teaching aims How Einstein's photon picture of light explains the photoelectric effect: How experiments with x rays and gamma rays helped confirm the photon picture of light; How the wave and particle pictures of light complement each other: How the Heisenberg uncertainty principle imposes fundamental limits on what can be measured. 2.Keypoints and Difficulties Keypoints:The Photoelectric Effect:Compton Scattering:Wave-Particle Duality Difficulties:Compton Scattering:Wave-Particle Duality:Uncertainty 3.Contents 2.1 Light Absorbed as Photons:The Photoelectric Effect 2.2 Light Emitted as Photons:X-Ray Production ship is traveling at a speed of 0.800c relative to Tatooine, in the same direction as the cruiser. (a) For the pursuit ship to catch the cruiser, should the velocity of the cruiser relative to the pursuit ship be directed toward or away from the pursuit ship? (b) What is the speed of the cruiser relativeto the pursuit ship? 5. A source of electromagnetic radiation is moving in a radial direction relative to you. The frequency you measure is 1.25 times the frequency measured in the rest frame of the source. What is the speed of the source relative to you? Is the source moving toward you or away from you? 6. (a) At what speed is the momentum of a particle twice as great as the result obtained from the nonrelativistic expression. Express your answer in terms of the speed of light. (b) A force is applied to a particle along its direction of motion. At what speed is the magnitude of force required to produce a given acceleration twice as great as the force required to produce the same acceleration when the particle is at rest? Express your answer in terms of the speed of light. 7. What is the speed of a particle whose kinetic energy is equal to (a) its rest energy and (b) five times its rest energy? Chapter Two: Photon: Light Waves behaving as particles 1. Teaching aims How experiments involving the photoelectric effect and x rays pointed the way to a radical reinterpretation of the nature of light; How Einstein’s photon picture of light explains the photoelectric effect; How experiments with x rays and gamma rays helped confirm the photon picture of light; How the wave and particle pictures of light complement each other; How the Heisenberg uncertainty principle imposes fundamental limits on what can be measured. 2. Keypoints and Difficulties Keypoints: The Photoelectric Effect; Compton Scattering; Wave–Particle Duality Difficulties: Compton Scattering; Wave–Particle Duality; Uncertainty 3. Contents 2.1 Light Absorbed as Photons: The Photoelectric Effect 2.2 Light Emitted as Photons: X-Ray Production