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Photons of an electromagnetic radiation has an energy 11 keV each. To which region of electromagnetic spectrum does it belong ?

Options

  1. AX-ray region
  2. BUltra violet region
  3. CInfrared region
  4. DVisible region

Correct answer

A. X-ray region

Step-by-step solution

E = hc = hc E = 6.6 10⁻³⁴ 3 10^8 11 1000 1.6 10⁻¹⁹ =12.4 Å wavelength range of visible region is 4000 Å to 7800 Å

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