In order that a hydrometer may float vertically in electrolyte its C.G. should be___________?
Correct answer: A. lowered
- A. lowered
- B. raised
- C. undisturbed
- D. displaced sideways
Explanation
For a hydrometer to remain upright, its centre of gravity must lie below its centre of buoyancy, producing a restoring moment after tilting. Lowering the centre of gravity provides this stability.
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