MCQOPTIONS
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				| 1. | 
                                    0.1 per cent of 1.728 × 106 spherical droplets of water, each of diameter 2 mm, coalesce to form a spherical bubble. What is the diameter (in cm) of the bubble? | 
                            
| A. | 1.2 | 
| B. | 1.6 | 
| C. | 1.8 | 
| D. | 2.4 | 
| Answer» E. | |