Physics · Waves
The phase difference (φ) and the path difference (χ) of a progressive wave of wavelength 'λ' are related as:
- 1φ = λ2π χ
- 2φ = 2πλχ
- 3φ = χ2π λ
- 4φ = 2π χλ✓
Correct answer
φ = 2π χλ
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