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NEET2003PhysicsThermal Properties of MatterActual

Assertion : It is hotter over the top of a fire than at the same distance on the sides. Reason : Air surrounding the fire conducts more heat upwards.

Options

  1. Aif both assertion and reason are true and the reason is the correct explanation of the assertion
  2. Bif both assertion and reason are true and the reason is not the correct explanation of the assertion
  3. Cif assertion is true but reason is false
  4. Dif both assertion and reason are false statements.

Correct answer

C. if assertion is true but reason is false

Step-by-step solution

When we put a fire in a place, the air above the fire gets heated up. Hot air being light moves up. To fill up the gap cold air from the side of the fire rushes in. As the top of a fire is covered by hot air, it feels hotter over the top of the fire than at the same distance on the sides.

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