Class 9 Physics MCQs – Certification Test 181

Thermal Expansion Trivia (Question 181) – Study App & e-Book Download

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MCQ 181: Wires on electric poles are given some sag to prevent breaking in:

winter
rainy season
hot season
wind

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The App: Thermal Expansion Trivia App to Learn Thermal Expansion Notes, 9th Grade Physics Trivia App, and SAT Physics Trivia App to understand high school physics.

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