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The relative densities of zinc, brass, copper, gold and silver are respectively 7.1, ...

The relative densities of zinc, brass, copper, gold and silver are respectively 7.1, 8.5, 8.9, 19.3, 10.5. A metal ornament which weighs 0.425kg and can displace 50 x 10-6m3m of water is made of
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  • A Zinc
  • B Brass
  • C Copper
  • D Gold
  • E Silver
Correct Answer: Option B
Explanation:
R.D = \(\frac{\text {density of object}}{\text{density of water}}\)
= \(\frac{\frac{0.425}{50 10^-6}{1000}\)
= 8.5

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