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Question

If an object is placed between infinity and the pole (P) in front of a convex mirror, what type of image will be formed?

This question was previously asked in
RRB ALP 2025 CBT 2 Wiremen Question Paper (28-Jul-2026) (Shift 2)
The correct answer is
Virtual, erect, and diminished (smaller in size)

Convex Mirror Image Characteristics

A convex mirror is a spherical mirror where the reflective surface bulges outwards. Key properties related to image formation by convex mirrors include:

  • Convex mirrors always form images that are virtual (cannot be projected onto a screen).
  • The images formed are always erect (upright, same orientation as the object).
  • The images formed are always diminished (smaller in size than the object).

Image Formation Analysis

The question asks about the image formed when an object is placed anywhere between infinity and the pole (P) of a convex mirror. For a convex mirror, the position of the object dictates the image characteristics as follows:

  • Object at Infinity: Image is formed at the principal focus (F), highly diminished, virtual, and erect.
  • Object between Infinity and Pole (P): The image is formed behind the mirror, between the pole (P) and the principal focus (F). This image is always virtual, erect, and diminished (smaller than the object).

Therefore, when an object is placed between infinity and the pole (P) in front of a convex mirror, the image formed is virtual, erect, and diminished.

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Similar Questions

  1. A concave mirror produces three times magnified (enlarged) real image of object placed at 10 cm in front of it. Which option describes the image correctly?
  2. Which of the following mirrors is used by doctors to focus a parallel beam of light on the patient's organs like teeth for the examination?
  3. The radius of curvature of a spherical mirror is 20 cm. Its focal length is:
  4. The nature of the image formed by a concave mirror if the magnification produced by the mirror is +3 is:

Important Questions from Mirrors and Images

  1. Which of the following statements correctly describes the nature and position of the image formed by a convex mirror when a real object is placed at any position in front of it?
  2. A beam of parallel light, originating from a distant source, is first incident on a convex lens with focal length $f_2$.
    Subsequently, the light passes through the lens and then reflects from a concave mirror having a focal length $f_1$.
    The concave mirror is placed at a distance $d$ from the convex lens.
    For the light rays to retrace their original path and ultimately emerge from the lens as a parallel beam heading back towards the distant source, the separation distance $d$ between the lens and the mirror must be:
  3. The total number of images formed by two mirrors inclined at 72° to each other when the object is placed unsymmetrically will be ___?

  4. A short linear object of length b lies along the axis of a concave mirror of focal length f at a distance u from the pole of the mirror. The size of the image is ;

  5. A concave mirror of focal length $f$ produces an image $n$ times the size of the object. If the image is virtual, then the distance of the object from the mirror is:
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