A virtual image larger than the object can be obtained by

Options

A. concave mirrorr
B. convex mirror
C. plane mirror
D. concave mirror

Answer

To determine how a virtual image larger than the object can be obtained, we need to analyze the characteristics of different optical devices: concave mirrors, convex mirrors, plane mirrors, and concave lenses.

### Step-by-Step Solution:

1. **Understanding Virtual Images**:
- A virtual image is one that cannot be projected onto a screen; it appears to be located behind the mirror or lens.
- Virtual images can be produced by various optical devices, but the size of the image relative to the object is crucial for this problem.

2. **Analyzing Each Option**:
- **Plane Mirror**:
- A plane mirror produces a virtual image that is the same size as the object (height of image = height of object).
- Therefore, it cannot produce a larger image.
- **Convex Mirror**:
- A convex mirror also produces a virtual image that is smaller than the object (height of image < height of object).
- Thus, it cannot be the answer.
- **Concave Lens**:
- A concave lens produces a virtual image that is smaller than the object (height of image < height of object).
- Hence, it is not the correct choice.
- **Concave Mirror**:
- A concave mirror can produce a virtual image that is larger than the object if the object is placed between the focal point (F) and the mirror's surface (pole).
- In this position, the rays of light diverge after reflecting off the mirror, and when extended backward, they appear to converge at a point behind the mirror, forming a larger virtual image.

3. **Conclusion**:
- The only optical device that can produce a virtual image larger than the object is a **concave mirror** when the object is placed between the focal point and the mirror.

### Final Answer:
A virtual image larger than the object can be obtained by using a **concave mirror**.

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