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Transmission of Heat — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsTransmission of Heat1 Mark
MCQ
Two thin blankets keep more hotness than one blanket of thickness equal to these two. The reason is
  • A
    Their surface area increases
  • ✓
    A layer of air is formed between these two blankets, which is bad conductor
  • C
    These have more wool
  • D
    They absorb more heat from outside
✓

Answer

Correct option: B.
A layer of air is formed between these two blankets, which is bad conductor
(b)

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