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Wave Optics — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsWave Optics1 Mark
MCQ
Two coherent sources of light can be obtained by
  • A
     Two different lamps
  • B
     Two different lamps but of the same power
  • C
    Two different lamps of same power and having the same colour
  • ✓
     None of the above
✓

Answer

Correct option: D.
 None of the above
 None of the above

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