Question:

The polymer used as sound proofing in refrigerators and buildings is:

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Expanded Polystyrene (EPS) is commonly used in insulation and soundproofing because of its lightweight and noise-dampening structure.
Updated On: Jun 20, 2025
  • Polypropylene
  • Polyvinylchloride
  • Polyethylene
  • Polystyrene
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The Correct Option is D

Solution and Explanation

Polystyrene, particularly in its expanded form (commonly known as EPS – Expanded Polystyrene), is widely used for soundproofing applications in buildings and appliances such as refrigerators.
Its low thermal conductivity and excellent acoustic insulation properties make it a suitable material for reducing sound transmission. Additionally, EPS is lightweight, easy to install, and cost-effective, which further supports its extensive use in insulation and soundproofing.
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