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X-Rays were discovered by Roentgen. See the attached link for a brief article. to prior answer- Marie Curies discovered many things in the field of radiation, but not X-Rays.
He made his biggest contribution in the field of education.
major contribution of chester barnard in field of management
if we're talking about a short dipole, you have {E.H} field depending by r^(-k), where r is distance between antenna's feed and point of {E,H} calculus and k is >=1. In far field, you can imagine r>>1, so r^(-k) contribution is lower for greater k and you can approximate {E,H} expression by considering only the contribution with the lowest k. This make Poynting vector become real, according with the assumption that far field radiation power is active, near field one has also a capacitive contribution.
No electromagnetic radiation, whether ionizing or not, is affected by an electric field or by a magnetic field.
discuss Harappans contribution in the field of development of urban culture?
he made a contribution
Marie Curie discovered radiation - she did lots of work with radio activity,and radioactive isotopes,and the spontaneous decay of certain elements into other elements and energy.
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