Q. Which of the following is a good conductor of heat?

निम्नलिखित में से कौन ऊष्मा का अच्छा सुचालक है?

A
Wood
लकड़ी
B
Copper
ताँबा
C
Glass
काँच
D
Plastic
प्लास्टिक

Explanation

Copper is a very good conductor of heat and is often used in cookware and electrical wiring. It allows heat to flow quickly due to free-moving electrons.
The others (wood, glass, plastic) are poor conductors (insulators).

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