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Wave Optics — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsWave Optics1 Mark
MCQ
When the light source is approaching, the Doppler effect for light is known as:
  • A
    Red Shift
  • B
    Purple Shift
  • C
    Maroon Shift
  • D
    Blue Shift
✓

Answer

  1. Blue Shift

Explanation:

Optical light with a short wavelength is blue. When the wavelength of the light gets shortened by Doppler effect, we refer to the change in the wavelength as blue shift.

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