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In which of the following are the substances arranged in descending order of their thermal...

Physics
NECO 2002

In which of the following are the substances arranged in descending order of their thermal conductivities?

  • A. aluminium, copper, iron
  • B. aluminium, iron, copper
  • C. copper, aluminium, iron
  • D. copper, iron. aluminium
  • E. iron, copper, aluminium
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Correct Answer: Option C
Explanation

metals                    thermal conductivity( W/mk)

IRON                          65.7

COPPER                   377

ALUMINIUM              218

THERMAL CONDUCTIVITIES OF Al, Fe, and Cu at 100degree Celsius

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