Use the following information to answer the next question-A hydrometer weighs 90 g and the area of cross-section of its stem is 1-5 cm 2- The length of its stem is 22 cm and it floats with 11 cm of its stem in alcohol of density 0-9 g cm -3 What are the maximum and minimum densities that can be measured by this hydrometer-A- 1-070 g cm -3 and 0-753 g cm -3B- 1-138 g cm -3 and 0-453 g cm -3C- 1-058 g cm -3 and 0-473 g cm -3D- 1-078 g cm -3 and 0-773 g cm -3

The correct option is D 1.078 g cm−3 and 0.773 g cm−3 ...

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Standard IX

Physics

Measurement of Atmospheric Pressure

Use the follo...

Question

Use the following information to answer the next question.

A hydrometer weighs 90 g and the area of cross−section of its stem is 1.5 cm². The length of its stem is 22 cm and it floats with 11 cm of its stem in alcohol of density 0.9 g cm⁻³

What are the maximum and minimum densities that can be measured by this hydrometer?

1.058 g cm⁻³ and 0.473 g cm⁻³

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1.070 g cm⁻³ and 0.753 g cm⁻³

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1.138 g cm⁻³ and 0.453 g cm⁻³

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1.078 g cm⁻³ and 0.773 g cm⁻³

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Solution

The correct option is D
1.078 g cm⁻³ and 0.773 g cm⁻³

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