A) 0.648 N
B) 0.712 N
C) 0.066 N
D) 1.37 N
Correct Answer: A
Solution :
Tension,\[T=mg-\]buoyant force \[=V\rho g-V(\rho -\sigma )g={{l}^{3}}(\rho -\sigma )g\] \[=8\times {{10}^{-6}}(8920-820)\times 10\] \[=0.648\text{ }N\]You need to login to perform this action.
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