Consider the following pairs 1. Plane mirror | Image of the same size as the object 2. Concave mirror | Rear view mirror in a vehicle 3. Convex mirror | Dentist How many of the above pairs are correctly matched?

Plane mirror

• A plane mirror is a flat, smooth mirror with a reflective surface. It forms images by reflecting light according to the laws of reflection.
• Applications: Everyday Use: Plane mirrors are commonly used in household items like bathroom mirrors, dressing mirrors, and side mirrors.
• Type of Image: A plane mirror forms a virtual image, which means the image appears to be behind the mirror and cannot be projected onto a screen
• Characteristics of the Image:
  • Size: The image is of the same size as the object. Hence, Statement 1 is correct.
  • Distance: The image is located at the same distance behind the mirror as the object is in front of it.
  • Orientation: The image is laterally inverted (left-right reversal).
  • Virtual and Upright: The image formed is virtual and upright.

Concave mirror

• A concave mirror is a spherical mirror with a reflecting surface that curves inward, resembling the interior of a sphere. It converges light rays that are parallel to its principal axis.
• Types of Images: Concave mirrors can form real or virtual images depending on the object's position relative to the focal point.
• Real Image: Formed when the object is placed beyond the focal point (F) and is inverted. Real images can be projected onto a screen.
• Virtual Image: Formed when the object is placed between the focal point (F) and the mirror. The image is upright and cannot be projected onto a screen.
• Applications:
  • Reflecting Telescopes: Concave mirrors are used in telescopes to gather and focus light from distant celestial objects.
  • Headlights: They are used in vehicle headlights to focus and direct light.
  • Shaving Mirrors: Concave mirrors are used in shaving mirrors and makeup mirrors to provide a magnified view.
  • Medical Instruments: Used in dental and surgical instruments to provide a clear view of small areas. Hence, Statement 3 is incorrect.

Convex mirror

• A convex mirror, also known as a diverging mirror, is a spherical mirror with a reflecting surface that curves outward, away from the incident light. It diverges light rays that are parallel to its principal axis.
• Type of Image: Convex mirrors always form virtual images. These images cannot be projected onto a screen and appear to be located behind the mirror.
• Applications:
  • Side Mirrors in Vehicles: Convex mirrors are used in vehicle side mirrors to provide a wider field of view, helping drivers see more of the road and reducing blind spots. Hence, Statement 2 is incorrect.
  • Security Mirrors: They are used in security systems and surveillance to cover wide areas and monitor multiple directions.
  • Street Mirrors: Used at road intersections to improve visibility for drivers and reduce accidents.