Mirror used by a dental surgeon isA. PlaneB. ConvexC. ConcaveD. Convex and concave

The correct answer is: C. Concave
A dental surgeon uses a concave mirror because of its unique properties that make it ideal for examining teeth and other areas inside the mouth:
1. Magnification: Concave mirrors can produce an enlarged (magnified) image of objects placed within their focal length. This allows the dentist to observe fine details, such as small cavities or cracks in teeth.
2. Focus and Clarity: The concave mirror focuses light onto a specific area, making it easier to illuminate and examine the mouth effectively.
3. Erect Image: When an object is placed between the mirror and its focal point, the concave mirror produces an upright and magnified image, which is suitable for dental work.
Why not other mirrors?
• Plane Mirror: Plane mirrors do not magnify; they only produce a virtual, same-size image, which is not helpful for detailed examination.
• Convex Mirror: Convex mirrors produce diminished and wide-field images, which are not suitable for focusing on small areas.
• Combination of Convex and Concave: This is not practical for dental work as it complicates the reflection properties. Only a concave mirror meets the requirements of magnification and clarity effectively.
Hence, concave mirrors are the standard choice for dental surgeons.