The objects made of steel, mica, wood and brass are lying in the same room during winter season. The objects which will feel warmer to touch are

Options

A. steel and brass objects
B. mica and brass objects
C. wooden and steel objects
D. mica and wooden objects

Answer

To determine which objects feel warmer to touch among steel, mica, wood, and brass during winter, we need to consider the thermal conductivity of these materials.

### Step-by-Step Solution:

1. **Understanding Thermal Conductivity**:
- Thermal conductivity is a measure of a material's ability to conduct heat. Materials can be classified as good conductors or bad conductors of heat.

2. **Identifying the Materials**:
- The materials in question are:
- Steel
- Mica
- Wood
- Brass

3. **Classifying the Conductors**:
- **Good Conductors**: Steel and Brass are good conductors of heat. This means they can transfer heat quickly.
- **Bad Conductors**: Mica and Wood are bad conductors of heat. They do not transfer heat effectively.

4. **Effect of Temperature**:
- In winter, the temperature in the room is lower. Good conductors (steel and brass) will quickly lose heat to the surrounding environment when touched, making them feel cold.
- Bad conductors (mica and wood) will not lose heat as quickly. They will retain some warmth and thus feel warmer to the touch.

5. **Conclusion**:
- When you touch the objects, the ones that feel warmer will be the bad conductors of heat, which are mica and wood.

### Final Answer:
The objects that will feel warmer to touch are **mica and wood**.

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