Physics
A wave has wavelength 50 Å. (a) Name the wave. (b) State it's speed in vacuum. (c) State it's one use.
Spectrum
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Answer
(a) Wavelength of X-ray waves is in the range of 0.1 Å to 100 Å. Hence, the electromagnetic wave having wavelength 50 Å is X-ray.
(b) As all the waves move with the speed of 3 x 108 ms-1 in vacuum. Hence, the speed of x-ray in vacuum is also equal to 3 x 108 ms-1.
(c) X-ray waves are used for the detection of fracture in bones, teeth etc (i.e., radiography).
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