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9 Question The wavelength is measured from O crest to crest through to crest O trough to trough O none of the aboveit} Question Which of the following is true when the frequency is doubled? O the period is doubled O the velocity is doubled O the wavelength {lambda} is doubled 0 none of the above 8 Question. A "snapshot" of a wave at a given time is presented by the graph to the right. What is the amplitude of the oscillations of the wave? Consider the solid red line. Ax = vAt = 0.25 m/s (0.80 s) = 0.20 m y(m) 0.30 - 0.20 - 1 = 0.80 s 0.10 - 0.CO x(m) -0.10 - 1 0.00 s -0.20 -0.30+ 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 O 0.20m O 0.80m O 1.00m O 1.00m