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`        A wire of mass 0.3gm is lying horizontal on water surface.surface tension is 70×10^-3N/m.  The maximum length of wire so that it may not sink is... . .... . .. .ANS: 2.1cm `
11 months ago

## Answers : (1)

Darshini Prakash
28 Points
```							2S = F/L ; F=mg(Where S=Surface tension; F=Force acting on the body; L=Length of the body)Substituting the given values we get:2(70*10-3 ) = (0.3*10-3)*10/L       (**WE SHOULD SUBSTITUTE ALL THE VALUES IN SAME UNITS**)L=0.021m  or  L=2.1cm
```
11 months ago
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### Course Features

• 110 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions