When we talk about images formed by a plane mirror, it's essential to understand the characteristics of the image produced. The correct answer to your question is (B) Virtual, behind the mirror, and of the same size as the object. Let’s break this down to clarify why this is the case.
Characteristics of Plane Mirrors
Plane mirrors are flat surfaces that reflect light according to the laws of reflection. Here are some key points to consider:
- Virtual Image: The image formed by a plane mirror is virtual, meaning it cannot be projected onto a screen. It appears to be located behind the mirror.
- Location: The virtual image seems to be the same distance behind the mirror as the object is in front of it. For instance, if you stand 2 meters in front of a plane mirror, the image appears to be 2 meters behind the mirror.
- Size: The size of the image is the same as that of the object. If you are 1.7 meters tall, your image in the mirror will also appear to be 1.7 meters tall.
Why Not the Other Options?
Let’s analyze the other options to see why they don’t fit:
- Option A: This states the image is enlarged. However, plane mirrors do not magnify images; they maintain the same size as the object.
- Option C: This suggests the image rests at the surface of the mirror. In reality, the image appears behind the mirror, not at its surface.
- Option D: This option claims the image is real. Real images can be projected onto a screen, which is not the case with plane mirrors.
Visualizing the Concept
To visualize this, think about how you see your reflection. When you look into a plane mirror, you see a clear image of yourself. If you move closer or farther away, the image moves correspondingly, but it remains the same size and appears to be behind the mirror. This consistent behavior is what defines the image characteristics of a plane mirror.
Real-World Applications
Understanding how plane mirrors work is not just theoretical; it has practical applications. For example, they are commonly used in bathrooms, dressing rooms, and even in vehicles as side mirrors. Knowing that the image is virtual and of the same size helps us use these mirrors effectively without confusion.
In summary, the image formed by a plane mirror is virtual, located behind the mirror, and of the same size as the object. This fundamental property of plane mirrors is crucial in various fields, from everyday life to advanced optics.
