MCQOPTIONS
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MCQOPTIONS
| 1. |
In an underdamped vibration system, logarithmic decrement is given by: |
| A. | \( \frac{{2\pi \xi }}{{\sqrt {1 - {\xi ^2}} \;}}\) |
| B. | \( \frac{{2\pi \xi^2 }}{{\sqrt {1 - {\xi ^2}} \;}}\) |
| C. | \( \frac{{2\pi \xi }}{{\sqrt {1 + {\xi ^2}} \;}}\) |
| D. | \( \frac{{2\pi \xi }}{{\sqrt {1 - {\xi }} \;}}\) |
| Answer» B. \( \frac{{2\pi \xi^2 }}{{\sqrt {1 - {\xi ^2}} \;}}\) | |