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A jeweller claims that he makes ornament...

A jeweller claims that he makes ornaments of pure gold that has a relative density of 19.3. He sells a bangle weighing 25.25 gf to a person. The clever customer weighs the bangle when immersed in water and finds that it weighs 23.075 gf in water. With the help of suitable calculations, find out whether the ornament is made of pure gold or not.

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The correct Answer is:
Gold is not pure.
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ICSE-UPTHRUST IN FLUIDS, ARCHIMEDES' PRINCIPLE AND FLOATATION-EXERCISE 5(B) (Numerical)
  1. The density of copper is 8.83gcm^(-3). Express it in kgm^(-3).

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  2. The relative density of mercury is 13.6. State its density in (i) C.G....

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  3. The density of iron is 7.8xx 10^3 "kg m"^(-3) What is its relative de...

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  4. The relative density of silver is 10.8. Find its density.

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  5. Calculate the mass of a body whose volume is 2 m^3and relative density...

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  6. Calculate the mass of air in a room of dimensions 4.5 m x 3.5 m x 2.5 ...

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  7. A piece of stone of mass 113 g sinks to the bottom in water contained ...

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  8. A body of volume 100cm^(3) weighs 1 kgf in air. Find (i) its weight in...

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  9. A body of mass 70kg, when completely immersed in water, dispaces 20,00...

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  10. A solid weighs 120 gf in air and 105 gf when it is completely immersed...

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  11. A solid weighs 32 gf in air and 28.8 gf in water. Find the volume of...

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  12. A body weighs 20 gf in air and 18.0 gf in water. Calculate relative de...

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  13. A solid weighs 1.5 kgf in air and 0.9 kgf in a liquid of density 1.2xx...

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  14. A jeweller claims that he makes ornaments of pure gold that has a rel...

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  15. A piece of iron weighs 44.6 gf in air. If the density of iron is 8.9xx...

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  16. A piece of stone of mass 15.1 g is first immersed in a liquid and it w...

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