Waves in decreasing order of their wavelength are: \( \mathrm{P} \)...

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Waves in decreasing order of their wavelength are:
\( \mathrm{P} \)
(1) X-rays, infrared rays, visible rays, radio waves
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(2) radio waves, visible tays, infrared rays, X-rays
(3) radio waves, infrared rays, visible rays, X-rays
(4) radio waves, ultraviolet rays, visible rays, X-rays.
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