Question:medium

During a summer day a scooter rider feels more comfortable while on the move than while at rest at a stop light because

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Forced Convection vs. Natural Convection: - Stationary state $\implies$ Natural Convection $\implies$ Low velocity $\implies$ Small $h$ value $\implies$ Poor heat dissipation. - Moving state $\implies$ Forced Convection $\implies$ High relative velocity $\implies$ Large $h$ value $\implies$ High heat dissipation rate.
Updated On: Jul 9, 2026
  • More heat is lost by convection while in motion
  • Air is transparent to radiation, hence it is cooler than the body
  • The object in motion captures less solar radiation
  • Air has a low specific heat, hence it is cooler
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The Correct Option is A

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