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Which of the following statements are true regarding heat? Heat is a form of energy. Heat can be reflected by the mirror. Heat is electromagnetic radiation. Heat cannot pass through a vacuum. Select the correct answer from the codes given:

Which of the following statements are true regarding heat? Heat is a form of energy. Heat can be reflected by the mirror. Heat is electromagnetic radiation. Heat cannot pass through a vacuum. Select the correct answer from the codes given: Correct Answer 1, 2 and 3

CONCEPT:

  • Heat: It is a form of energy that flows from one body to another due to the difference in temperature between the bodies.

Properties of heat:

  • It is simply the potential energy stored in the bonds that hold particles within the object together.
  • Heat or thermal energy is the form this energy possesses when it is being transferred between systems and surroundings.
  • Heat can be reflected by the mirror. Mirrors reflect light and light carries heat energy. 
  • Heat is electromagnetic radiation. Heat radiation (as opposed to particle radiation) is the transfer of internal energy in the form of electromagnetic waves. One of the main forms of heat transfer is electromagnetic radiation. 
  • Heat energy is also carried by non-visible radiation, particularly infra-red light. That too can be reflected by mirrors, but they are designed to reflect visible light best.

EXPLANATION:

  • Heat is a form of energy. so statement 1 is correct.
  • Heat can be reflected by a mirror like light. So statement 2 is correct.
  • Heat is a type of electromagnetic radiation. so statement 3 is correct.
  • As heat is an electromagnetic radiation, so it can travel through vacuum. So statement 4 is wrong.

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