KEAM 2013 Physics and Chemistry Paper

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Question : 55 of 120

Marks: +1, -0

If the magnetic field of an electromagnetic wave is given as

By=2×10−7sin(103x+105×1012t)

tesla, the wavelength of the electromagnetic wave is

0.314 mm
0.628 mm
6.28 mm
1.26 mm
0.0628 mm

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