The correct option is 1 and 2 only
Explanation
The nature of an image formed by optical devices depends on the curvature of the reflecting or refracting surface. Images are characterized by their orientation (erect or inverted), nature (real or virtual), and relative size (magnified, diminished, or same size).Statement-wise Analysis:
- Statement 1 is Correct. A plane mirror always forms an image that is virtual, erect, and of the same size as the object. The distance of the image behind the mirror is equal to the distance of the object in front of it.
- Statement 2 is Correct. A convex mirror is a diverging mirror. Regardless of the position of the object, it always forms a virtual, erect, and diminished (smaller) image. This property allows it to cover a wider field of view, making it ideal for rear-view mirrors in vehicles.
- Statement 3 is Incorrect. A concave lens is a diverging lens. It always forms a virtual, erect, and diminished image. It cannot form a magnified image. Magnified images are typically formed by convex lenses (when the object is placed within the focal length) or concave mirrors.
Key Takeaway: Diverging optical elements (convex mirrors and concave lenses) always produce virtual, erect, and diminished images. Converging elements (concave mirrors and convex lenses) can produce real or virtual, and magnified or diminished images depending on the object's position.