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{"ops":[{"insert":"A travelling wave is created on a string. The graph below shows the variation with time t of the displacement y of a particular point on the string.\nGraph1 y\/mm 2.0 1.0\n0.00.0\u00a0\u00a00.5 t \/ ms \u20131.0\n\u20132.0\nThe variation with distance x of the displacement y of the string at t = 0 is shown below.\n\u00a00.1\n0.2\n0.3\n0.4\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0(a)\nUse information from the graphs to calculate, for this wave,\nGraph2 y\/mm 2.0 1.0\n0.00.0 5.0 x \/ cm \u20131.0\n\u20132.0\n(i) the wavelength;\n(ii) the frequency;\n(iii) the speed of the wave.\nThe wave is moving from left to right and has period T.\n(i) On graph 1, draw a labelled line to indicate the amplitude of the wave.\n(ii) On graph 2, draw arrows to indicate the direction of motion of the points at x = 2.0 cm and x = 3.0 cm.\n(iii) On graph 2, draw the displacement of the string at t = T4 .\n\u00a0\u00a01.0\n2.0\n3.0\n4.0\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0(b)\n\u00a0\n(c)\nOne end of the string is attached to a wall. A student creates a single pulse in the string\n"}]}
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