17. The speed of a light waves in vacuum is 3 x 10° m/s. The period of the light wave is 700 ns. What is the frequency of this wave? a) 1.429 x 10-12 Hz b) 1.429 x 10-3 Hz c) 2.100 x 10² Hz d) 1.429 x 10 Hz e) 4.286 x 10“ Hz
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A: If you have any questions let me know in comment box thankyou for your question.
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