The intensity of pressure developed by surface tension of 0.075 N/m in a droplet of water of 0.075 mm diameter is -

- 1
  
  $0.8 N / c m^{2}$
- 2
  
  $0.6 N / c m^{2}$
- 3
  
  $0.4 N / c m^{2}$
- 4
  
  $400 N / c m^{2}$

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