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| Q. |
The efficiency of a percolating filter is given by |
| A. | 100/(1+0.0044 (??)) |
| B. | 100/(1+0.044 (??) 1/2) |
| C. | 100/(1+0.44 (??) 1/2) |
| D. | 100/(1+0.0044 (??) 1/2) |
| Answer» D. 100/(1+0.0044 (??) 1/2) | |
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