Physics · Interference of light
What is the primary condition required for two light waves to produce a stable and sustainable interference pattern?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1They must be emitted from two independent, incoherent light sources.
- 2They must have the same frequency and a constant phase difference.✓
- 3They must travel in opposite directions with varying amplitudes.
- 4They must have different frequencies and random phase differences.
Correct answer
They must have the same frequency and a constant phase difference.
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