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`        A solid sphere of radius R has a concwntric circle of radius R/2 inside it. The sphere is found to just float in water with the highest point of it touching the wtarer surface . The specific gravity of the material of the sphere is______`
2 years ago

Arun
24739 Points
```							Upward trust of the water to the solid sphere= 34​  πR 3 ×1×gNow, for equilibrium, upward trust = weight of the solid= 34​  π(R 3 − 8R 3 ​  )d×g= 34​  πR 3 gd solid​  = (1− 81​  )1​  = 78​  ∴ specific gravity of the material= d vater​  d solid​  ​  = 78​
```
one month ago
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### Course Features

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