MCQOPTIONS
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| 1. |
Consider a spherical drop of liquid having radius ‘R’. Assume a diametric cross-section which divides the drop into two hemispheres. The hemispheres pull each other due to surface tension along the circumference of the diametrical cross-section. What is the value of this force? |
| A. | 2πRS |
| B. | πR2 S |
| C. | 2RS |
| D. | 0 |
| Answer» B. πR2 S | |