Physics (AS & A Level) · May / June 2017 · Paper 43 · Question 11
9702
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A beam of light consists of a continuous range of wavelengths from 420 nm to 740 nm. The light passes through a cloud of cool gas, as shown in Fig. 11.1. incident light cool gas emergent light wavelengths 420 nm – 740 nm Fig. 11.1
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11(a)[4]
11(b)(i)[2]
11(b)(ii)[2]
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