Question
Download Solution PDFWhich of the following objects is a good conductor of heat?
This question was previously asked in
Bihar STET TGT (Science) Official Paper-I (Held On: 08 Sept, 2023 Shift 1)
Answer (Detailed Solution Below)
Option 4 : Glass
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Bihar STET Paper 1 Mathematics Full Test 1
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Detailed Solution
Download Solution PDFExplanation:
- The ability of a material to conduct heat is determined by its thermal conductivity.
- Thermal conductivity is a measure of how well a material can transfer heat from one part to another.
- Plastic: Generally, plastics are poor conductors of heat. They have low thermal conductivity, meaning they do not transfer heat efficiently.
- Thermocol (Expanded Polystyrene): Thermocol is also a poor conductor of heat. It is often used as an insulating material precisely because of its low thermal conductivity.
- Wood Sawdust: Wood sawdust, like wood itself, is a poor conductor of heat. Wood has relatively low thermal conductivity, making it a good insulator.
- Glass: Glass is a better conductor of heat compared to the other materials listed.
- It is not as good as metals, but it still conducts heat better than plastics or wood.
- This is why glassware can become hot when filled with a hot liquid.
- However, compared to metals, glass has relatively lower thermal conductivity.
Last updated on Jan 29, 2025
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