A candle of height 30 cm is placed in front of the mirror. What will be the height of its image?

Options

A. 15 cm
B. 30 cm
C. 45 cm
D. 10 cm

Answer

To solve the question about the height of the image of a candle placed in front of a mirror, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Height of the Candle**:
The height of the candle is given as 30 cm.

2. **Understand the Type of Mirror**:
The question specifies that we are dealing with a plane mirror. A plane mirror is flat and has specific properties regarding image formation.

3. **Properties of Image Formation in a Plane Mirror**:
- The image formed by a plane mirror is virtual.
- The image is erect (upright).
- The image is laterally inverted (left and right are reversed).
- The height of the image is equal to the height of the object.

4. **Apply the Properties**:
Since the candle is 30 cm tall and the properties of the image formed by a plane mirror state that the height of the image is the same as the height of the object, we can conclude that the height of the image will also be 30 cm.

5. **Final Answer**:
Therefore, the height of the image of the candle will be 30 cm.

### Summary:
The height of the image of a candle that is 30 cm tall, placed in front of a plane mirror, is also 30 cm.

---