Class 9 Physics MCQs (Grade 9) From Textbook

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Class 9 Physics MCQs – Certification Test 334

Heat Transfer and Radiation MCQs (Question 334) – Learning App & e-Book Download

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MCQ: 334

A transparent polyethene sheet works as heat trapper because it

  1. traps radiations of sun inside only
  2. passes radiations of short wavelength only
  3. traps long wavelength radiations
  4. traps radiation of sun inside and passes radiations of short wavelength

Heat Transfer and Radiation Exam Prep – Class 9 Physics App & e-Book MCQs

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Heat Transfer and Radiation MCQs Apps (iOS & Android)

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