| A block of wood is floating in water in a vessel. This vessel is kept in a moving lift. |
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| Portion of block inside water is let x. |
A) When lift is moving with a constant velocity then portion of block inside water is x
B) When lift is accelerating up then portion of block inside water is x
C) When lift is accelerating down then portion of block inside water is x
D) All of the above
Correct Answer: D
Solution :
Fraction of block submerged depends on weight of block and buoyant force. So, fraction of block submerged does not depends on acceleration of frame of reference. So, depth inside water remains same in all cases.
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