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General
Easy
Question
A cylindrical block of area of cross–section A and of material of density is placed in a liquid of density one–third of density of block. The block compresses a spring and compression in the spring is one–third of the length of the block. If acceleration due to gravity is g, the spring constant of the spring is:
- Ag
- 2 Ag
- 2 Ag/3
- Ag/3
The correct answer is: 2 Ag
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