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| Q. |
The washing machine works on the principle of – |
| A. | Dialysis |
| B. | Diffusion |
| C. | Reverse osmosis |
| D. | Centrifugation |
| Answer» D. Centrifugation | |
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Explanation: Washing machines work on the principle of centrifugation. They are based onmedium sized centrifuges that put an object in rotation around a fixed axis, applying force perpendicular to the axis. |
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