Multiple choice

Consider the following statements:

  1. The smell of hot sizzling food reaches several metres away because hot food has higher kinetic energy of the particles.
  2. A hot body radiates heat most rapidly if its surface is white and rough.

Which of the following statements is/are incorrect?

  1. Only 1

  2. Only 2

  3. Both 1 and 2

  4. Neither 1 nor 2
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Statement 1 is correct. The temperature of hot food is more. Therefore, the particles of hot vapours coming out of hot sizzling food have higher kinetic energy, i.e. they move faster and hence, the smell of hot sizzling food reaches several metres away. Statement 2 is incorrect. A body with black and rough surface absorbs heat most rapidly (it absorbs heat energy).

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