The correct answer is option 2: erect, virtual and same size.

When an object is placed in front of a plane mirror, it forms an image. The image formed by a plane mirror is virtual, which means it cannot be projected on a screen. It is also erect, which means it appears in the same orientation as the object.

The size of the image formed by a plane mirror is the same as the size of the object. This is because the distance between the object and the mirror is equal to the distance between the mirror and the image. As a result, the image appears to be the same size as the object.

Option 1, which states that the image is erect, real, and larger, is incorrect. In a plane mirror, the image cannot be larger than the object. Instead, the image is always the same size as the object.

Option 3, which states that the image is inverted, virtual, and the same size, is also incorrect. In a plane mirror, the image is never inverted. It always appears in the same orientation as the object.

Option 4, which states that the image is inverted, real, and smaller, is incorrect as well. In a plane mirror, the image is always virtual and cannot be