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2018 · M/J · 5054/12 | Q26

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CIE-5054-2018-MJ-p12 · Question 26

May/June 2018 Physics 5054/12: 40 multiple-choice questions, one mark each. No mark is deducted for a wrong answer. Electronic calculators may be used.
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26 A communications system uses microwaves with a wavelength of 15cm. The speed of light is 3.0 × 108m/s. What is the frequency of the microwaves? A 2.0 × 107Hz B 4.5 × 107Hz C 2.0 × 109Hz D 4.5 × 109Hz

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5054/12/M/J/18Cambridge O Level Physics 5054 · May/June 2018 · Paper 1 variant 2 · Question 26