Heat transfer by conduction is similar to wave motion because

Step 1: Analyze the question The question asks what conduction and wave motion have in common.

Step 2: Explain the concept

• Conduction: Heat passes through a solid as particles vibrate and pass kinetic energy to their neighbours. The particles stay in their positions. They do not travel along with the heat.
• Wave motion: A wave transfers energy from one point to another. The medium's particles only oscillate about their mean positions. The material itself is not carried along.

So the shared feature is that energy is transferred without any bulk movement of the material.

Step 3: Check each option

• A. Increase in temperature: This happens in conduction, but waves do not generally cause a temperature rise. It is not a similarity.
• B. Transfer of materials is involved: False for both. This describes convection, where the fluid itself moves.
• C. Charged particles vibrate at right angles: Not true. Conduction does not need charged particles, and right-angle vibration applies only to transverse waves, not to all waves or to conduction.
• D. No transfer of materials is involved: True for both conduction and wave motion.

Step 4: Answer The correct option is D.

Exam tip: Remember this contrast:

• Conduction: particles vibrate, with no bulk movement of material.
• Convection: the fluid itself moves and carries the heat.
• Radiation: no medium is needed.
• Waves: energy moves, not matter.

If an option says "transfer of materials" in a conduction question, it is almost always a trap.