A. Radiowave B. x-ray C. Ultra-violet ray D. Infra-red ray
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A. Radiowave B. Y-ray C. x-ray D. Microwave
A. Speed B. Frequency C. Intensity D. Amplitude
A. An electric field only B. A magnetic field only C. Both electric and magnetic fields D. No such field at all
A. A charge at rest B. A moving charge C. An accelerating charge D. None of these
A. Wavelength B. Frequency C. Intensity D. Medium in which it travels
A. Weber per ampere B. Volt second per ampere C. Joule per ampere² D. Ohm second
A. Remains zero B. Remains constant C. Increase D. Decrease
A. Zero B. Minimum but finite C. Maximum but finite D. Infinite
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A. Its electric field B. Its coil C. Its magnetic field D. Both in electric and magnetic field