MCQOPTIONS
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| 1. |
A burning candle is placed on a table. We can see the light of candle flame when we see it from: |
| A. | Bent tube \[\to \] by keeping only one eye open. |
| B. | Straight tube \[\to \] by keeping only one eye open. |
| C. | Spiral tube \[\to \] by keeping only one eye open. |
| D. | U-shape tube. |
| E. | None of these |
| Answer» C. Spiral tube \[\to \] by keeping only one eye open. | |