Question:
Which of the following materials are having high thermal conductivity? I. Silver II. Gold III. Nickel IV. Brass
Which of the following materials are having high thermal conductivity? I. Silver II. Gold III. Nickel IV. Brass
Show Hint
Metals with high electrical conductivity usually also have high thermal conductivity.
Updated On: Jun 29, 2026
- I and II only
- I and III only
- II and IV only
- III and IV only
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Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Concept:
Thermal conductivity in metals is primarily due to free electrons. More free electrons → higher heat transfer ability.
Step 1: Evaluate materials.
• Silver → highest thermal conductivity
• Gold → high thermal conductivity
• Nickel → moderate
• Brass → alloy → lower conductivity
Step 2: Select correct set.
Only: \[ \text{Silver and Gold} \] have high thermal conductivity. Final Answer: \[ \boxed{I \text{ and } II \text{ only}} \]
Step 1: Evaluate materials.
• Silver → highest thermal conductivity
• Gold → high thermal conductivity
• Nickel → moderate
• Brass → alloy → lower conductivity
Step 2: Select correct set.
Only: \[ \text{Silver and Gold} \] have high thermal conductivity. Final Answer: \[ \boxed{I \text{ and } II \text{ only}} \]
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