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Q:

A spherical metallic shell with 6 cm external radius weighs 6688 g. What is the thickness of the shell if the density of metal is 10.5 g per cm3? (Take л = 22/7)

  • 1
    4 cm
  • 2
    $$2{1\over 2}$$ cm
  • 3
    3 cm
  • 4
    2 cm
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Answer : 4. "2 cm"

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