Which of the following is correct for a classical wave equation?
University of Ilorin PHY104 2025 past question
- ∂²ψ/∂t² = v² ∂²ψ/∂x²
- ∂ψ/∂t = v ∂ψ/∂x
- ∂²ψ/∂t² = -v² ∂²ψ/∂x²
- ∂ψ/∂t = -v ∂ψ/∂x
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