Physics
In an X-ray tube electrons each of charge e are accelerated through V potential difference allowed to hit a metal target. The wavelength of the X-rays emitted is_______________?
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After traveling through a vacuum a photon of light entering into some transparent denser medium. Thus the energy of light______________?
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Errors in transmission through optic fiber can be minimized by using______________?
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Magnifying power of a simple microscope can be increased by?
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Sky appears blue because?
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To measure the Humidity in air, what instrument is used?
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What is the freezing point of heavy water?
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The fourth state of matter is?
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Scattering of light into its constituent colors is known as
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