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The frequency of an electromagnetic wave is10 MHz. What is its wavelength ?(A) 10 m(B) 3 m(C) 300 m(D) 30 m |
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Answer» λ= v/f where λ is the wavelength f is the frequency and v is the speed v = 299792458 m/s because it is electromagnetic wave f = 10^7 Hz hence wavelength =30m |
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