A virtual image of same size as that of the object is produced byConvex mirrorConcave mirrorPlane mirrorBoth plane mirror and concave mirror

To determine which type of mirror produces a virtual image of the same size as that of the object, let's analyze each type of mirror:

1. Plane Mirror: A plane mirror always produces a virtual image that is the same size as the object. The image formed is upright and located behind the mirror at the same distance as the object in front.

2. Concave Mirror: A concave mirror can produce both real and virtual images depending on the position of the object. However, a virtual image is only produced when the object is placed within the focal length of the mirror. The size of the image will vary depending on the object's distance from the mirror.

3. Convex Mirror: A convex mirror only produces virtual images, but these images are always smaller than the object.

Conclusion:

Based on this analysis, the answer is that a plane mirror produces a virtual image that is the same size as that of the object.

Final Answer:

Plane mirror