AP EAMCET · PHYSICS · Mechanical Properties of Fluids
A \(0.5 \mathrm{~kg}\) block of brass (density \(=8 \times 10^3 \mathrm{~kg} \mathrm{~m}^{-3}\) ) is suspended from a string. What is the tension in the string if the block is completely immersed in water? \(\left(g=10 \mathrm{~ms}^{-2}\right)\)
- A \(5 \mathrm{~N}\)
- B \(\frac{0.5}{8 \times 10^3} \mathrm{~N}\)
- C \(\frac{5}{8} \mathrm{~N}\)
- D \(\frac{35}{8} \mathrm{~N}\)
Answer & Solution
Correct Answer
(D) \(\frac{35}{8} \mathrm{~N}\)
Step-by-step Solution
Detailed explanation
Mass of block, \(m=0.5 \mathrm{~kg}\) Density, \(\rho=8 \times 10^3 \mathrm{~kg} \mathrm{~m}^{-3}\) Volume of block, \(V=\frac{m}{\rho}=\frac{0.5}{8 \times 10^3}=6.25 \times 10^{-5} \mathrm{~m}^3\) When block is fully immersed in water, then upthrust force on the block…
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