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If we take initial phase as π/2 or 90⁰, the displacement is?

Physics MDCAT Exams Quizzes MCQs Quizzes Oscillations Online Test 2

Question:
If we take initial phase as π/2 or 90⁰, the displacement is

Option A):
x= x₀ cos ωt
Option B):
x= x₀ sin (ωt + 90⁰)
Option C):
None of these
Option D):
x= x₀ cos (ωt + 90⁰)

Correct Answer is Option A):
x= x₀ cos ωt

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