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Unformatted text preview: ................................................... (c) According to A, how fast is B moving in order to give this time dilation factor? [2] ......................................................................... ......................................................................... ......................................................................... (d) According to B, how fast is A moving? [1] ......................................................................... (This question continues on the following page) 881-181 – 27 – N01/430/S(3) (Question G1 continued) (e) The second event is at rest with respect to observer A. Observer B measures 6 seconds for this event. What time interval does A measure? [3] ......................................................................... ......................................................................... ......................................................................... ......................................................................... (f) Which version of time is ‘correct’? Explain your answer. [2] ......................................................................... ......................................................................... ......................................................................... 881-181 Turn over – 28 – N01/430/S(3) G2. The mass of a particle called a muon as a function of its speed is shown in the graph below. ( mass / MeV / c 2 ) 1000 800 600 400 200 0 0.0 0.2 0.4 0.6 0.8 1.0 velocity / c Use the information in the graph to answer the following questions. (a) What is the rest mass of the muon? [1] ......................................................................... (b) At what speed would the muon need to be moving in order to have a mass of twice its rest mass? [2] ......................................................................... ......................................................................... ......................................................................... (c) If a constant force is applied to the muon, could this force ever accelerate it to a speed greater than the speed of light? Explain. ......................................................................... ......................................................................... ......................................................................... 881-181 [2] – 29 – N01/430/S(3) G3. One prediction of the General Theory of Relativity is gravitational redshift. Explain what is meant by the term gravitational redshift and outline an experiment that demonstrates the effect. [5] .............................................................................. .............................................................................. .............................................................................. .............................................................................. .............................................................................. .............................................................................. .............................................................................. 881-181 Turn over – 30 – N01/430/S(3) OPTION H — OPTICS H1. A student uses a single converging lens of focal length 12 cm to produce a magnified virtual image. (a) Show the approximate arrangement of object, lens and eye in order...
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This note was uploaded on 09/30/2011 for the course CHEM 102 taught by Professor Tina during the Spring '11 term at Global.

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