Choose the correct sequence of the radiation sources in increasing order of the wavelength of…

Choose the correct sequence of the radiation sources in increasing order of the wavelength of electromagnetic waves produced by them.
  1. X-ray tube, Magnetron valve, Radioactive source, Sodium lamp
  2. Radioactive source, X-ray tube, Sodium lamp, Magnetron valve
  3. X-ray tube, Magnetron valve, Sodium lamp, Radioactive source
  4. Magnetron valve, Sodium lamp, X-ray tube, Radioactive source

Solution

The correct sequence of the radiation source in increasing order of the wavelength is Radioactive source $\left(\sim 10^{-12} \mathrm{~m}\right) \rightarrow$ X-ray tube $\left(\sim 10^{-10} \mathrm{~m}\right) \rightarrow$ Sodium lamp $\left(\sim 10^{-9} \mathrm{~m}\right) \rightarrow$ Magnetron value $\left(\sim 10^{-3} \mathrm{~m}\right)$.

Asked in: AP EAMCET 2016

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