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Q35 (CDS-I/2020) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Geometrical optics Answer Verified

Which one of the following is not true about the image formed by a plane mirror?

Result
Your answer: —  Â·  Correct: C
Explanation

The image formed by a plane mirror has several distinct characteristics. It is always virtual and erect, meaning it cannot be projected onto a screen [3]. The size of the image is exactly equal to the size of the object [3]. Furthermore, the image exhibits lateral inversion, where the left side of the object appears as the right side of the image [3]. Another key property is that the image is formed as far behind the mirror as the object is in front of it; the object distance equals the image distance. Therefore, the statement that a plane mirror forms a 'real image' is incorrect, as the light rays do not actually converge at the image position but only appear to originate from behind the mirror [3].

Sources

  1. [3] https://satheejee.iitk.ac.in/article/physics/physics-plane-mirror/
  2. [1] Science ,Class VIII . NCERT(Revised ed 2025) > Chapter 10: Light: Mirrors and Lenses > Activity 10.3: Let us explore > p. 156
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