Concept:Mirrors and lenses form images based on reflection and refraction. Convex mirrors and concave lenses always produce virtual images. Concave mirrors and convex lenses can produce real or virtual images depending on object position.
Explanation:- Statement A: A convex mirror always forms a real image. This is false – convex mirrors always form virtual, upright, and diminished images.
- Statement B: A concave mirror always forms a virtual image. This is false – a concave mirror forms a real image when the object is beyond the focal point, and a virtual image when the object is between the focal point and the mirror.
- Statement C: A concave lens always forms a real image. This is false – a concave lens always forms a virtual, upright, and diminished image.
- Statement D: A convex lens can form a real as well as a virtual image. This is true – a convex lens forms a real image when the object is beyond the focal point, and a virtual image when the object is between the focal point and the lens.
Answer:Only statement D is correct: “A convex lens can form a real as well as a virtual image.”