In a concave mirror, if the position of the object is beyond C, then the size of the image/jpg is: 

The correct answer is Diminished.

Key Points

• In a concave mirror, when the object is placed beyond the center of curvature (C), the image formed is real, inverted, and diminished.
• The position of the image is between the focus (F) and the center of curvature (C).
• The diminished size occurs because the rays converge to form the image at a smaller scale compared to the object size.
• Concave mirrors follow the mirror formula and ray diagram principles to determine the size, position, and nature of the image.
• Applications of this property include usage in devices like reflecting telescopes and shaving mirrors for specific purposes.

Additional Information

• Concave Mirror:
  • A concave mirror has a reflective surface that curves inward, resembling the inside of a sphere.
  • It is also called a converging mirror because it converges light rays at a focal point.
  • The focal length of the concave mirror is the distance between its pole and its focal point.
• Image Formation Rules:
  • The nature and size of the image depend on the position of the object relative to the mirror's focal point (F) and center of curvature (C).
  • Key positions: Beyond C, at C, between C and F, at F, and between F and the mirror.
• Mirror Formula:
  • The mirror formula is 1/f = 1/v - 1/u, where:
    • f = focal length
    • v = image distance
    • u = object distance
  • This formula helps calculate image properties mathematically.
• Ray Diagrams:
  • Ray diagrams are used to visualize how light rays interact with concave mirrors to form images.
  • They illustrate the position, size, and nature of the image based on the object's placement.
• Applications of Concave Mirrors:
  • Concave mirrors are used in reflecting telescopes, headlights of vehicles, and shaving mirrors.
  • They are preferred for applications requiring focused light or magnified images.