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one side of a copper sheet is highly polished and the other side is painted matt black. the copper sheet is very hot and placed in a verticle position. a student places her hands at equal distances from the sheet. explain why her hands are not heated by convection ​

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olayemiolakunle65

Answer:

Because radiation does not require material medium for its propagation.

Explanation:

Radiation is one of the types of modes of heat transfer that takes place majorly in gases. Heat energy can be transferred through gases by radiation without heating up the intervening medium. Even, if the available molecules of gases are evacuated, the heat energy would propagate.

Thus, student's hands were not heated by convection since convection is a mode where material medium is required for propagation of heat energy.

Her hands are not heated by convection ​because radiation does not require material medium for its propagation.

 Radiation

  • It is one of the types of modes of heat transfer that takes place majorly in gases. Heat energy can be transferred through gases by radiation without heating up the intervening medium. Even, if the available molecules of gases are evacuated, the heat energy would propagate.
  • The sun's light and heat cannot reach us by conduction or convection because space is almost completely empty. There is nothing to transfer the energy from the sun to the earth.

Thus, student's hands were not heated by convection since convection is a mode where material medium is required for propagation of heat energy.

Learn more:

brainly.com/question/18338019

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