a wave has a length 50 Å I) name the wave 2) state it's speed in vaccume 3) state it's one use
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(a) The wavelength of the wave is 50 Å. Therefore, it is a X-ray.
(b) The speed of the wave will be 3 × 108 m/s in vacuum.
(c) X-rays are used to study atomic arrangement in crystals as well as complex molecules.
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