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Chapter 5 Upthrust In Fluids Archimedes Principle And Floatation | Exercise 5B

Question 30

A body weighs 20gf in air and 18 gf in water. Calculate relative density of the material of

the body

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Weight of the body in the air, W1 = 20gf

Weight of the body in water, W2 = 18gf

We know that, R.D of solid =

W1/W1−W2 x relative density of water

\begin{aligned} &=\frac{20}{20-18} \times 1\\ &\text { [R.D. of water is } 1]\\ &=10 \end{aligned}

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Question 30

A body weighs 20gf in air and 18 gf in water. Calculate relative density of the material of

the body

Looking to do well in your science exam ? Learn from an expert tutor. Book a free class!

Weight of the body in the air, W1 = 20gf

Weight of the body in water, W2 = 18gf

We know that, R.D of solid =

W1/W1−W2 x relative density of water

\begin{aligned} &=\frac{20}{20-18} \times 1\\ &\text { [R.D. of water is } 1]\\ &=10 \end{aligned}

Our top 5% students will be awarded a special scholarship to Lido.

subject-cta
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