Physics · Bohr model, energy levels, hydrogen spectrum
Fill in the blank. In a Ruby laser, the colour of laser light is due to
Fill in the blank. In a Ruby laser, the colour of laser light is due to
- A. Oxygen
- B. Aluminium
- C. xenon
- D. Chromium
Step-by-step solution
Ruby laser uses a ruby crystal (Al2O3) doped with chromium ions (Cr3+). The laser transition occurs in the chromium ions, producing red light at 694 nm.
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