Physics · Units and Dimensions
In the equation x = A cos(ωt+φ), where x is displacement, ω is angular frequency, and φ is phase angle, the equation is dimensionally consistent if __________.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1ωt has dimensions of length and φ is dimensionless
- 2A has dimensions of time and ωt has dimensions of frequency
- 3A has dimensions of length and ωt is dimensionless✓
- 4A has dimensions of length and φ has dimensions of time
Correct answer
A has dimensions of length and ωt is dimensionless
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