Question map
Not attempted Correct Incorrect ★ Bookmarked
Loading…
Q79 (CDS-I/2014) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Geometrical optics Answer Verified

No matter how far you stand from a mirror, your image appears erect. The mirror is likely to be

Result
Your answer: —  Â·  Correct: A
Explanation

The image formed by a mirror appears erect regardless of the distance from the mirror in two specific cases: plane mirrors and convex mirrors. A plane mirror always forms a virtual, erect image that is the same size as the object [4]. Similarly, a convex mirror always produces a virtual, erect, and diminished image, no matter where the object is placed in front of it [3]. In contrast, a concave mirror only produces an erect image when the object is placed very close to the mirror, specifically between the pole and the focal point [3]. If the object is moved further away from a concave mirror (beyond the focal point), the image becomes real and inverted [4]. Therefore, if the image remains erect at all distances, the mirror must be either plane or convex [1].

Sources

  1. [1] Science ,Class VIII . NCERT(Revised ed 2025) > Chapter 10: Light: Mirrors and Lenses > Activity 10.3: Let us explore > p. 156
  2. [4] Science-Class VII . NCERT(Revised ed 2025) > Chapter 11: Light: Shadows and Reflections > Activity 11.7: Let us experiment > p. 161
  3. [2] Science , class X (NCERT 2025 ed.) > Chapter 9: Light – Reflection and Refraction > Activity 9.5 > p. 141
  4. [3] Science ,Class VIII . NCERT(Revised ed 2025) > Chapter 10: Light: Mirrors and Lenses > Snapshots > p. 165
How others answered
Each bar shows the % of students who chose that option. Green bar = correct answer, blue outline = your choice.
Community Performance
Out of everyone who attempted this question.
25%
got it right
✓ Thank you! We'll review this.

SIMILAR QUESTIONS

CDS-I · 2025 · Q21 Relevance score: 8.12

If your image appears to be erect, no matter how far you stand from a mirror, the mirror is likely to be :

NDA-I · 2009 · Q67 Relevance score: 4.39

How far must a girl stand in front of a concave spherical mirror of radius 120 cm to see an erect image of her face four times its natural size?

CDS-I · 2015 · Q9 Relevance score: 3.55

A person standing 1 m in front of a plane mirror approaches the mirror by 40 cm. The new distance between the person and his image in the plane mirror is

NDA-I · 2016 · Q34 Relevance score: 2.81

A lady is standing in front of a plane mirror at a distance of 1 m from it. She walks 60 cm towards the mirror. The distance of her image now from herself (ignoring the thickness of the mirror) is

CDS-II · 2023 · Q119 Relevance score: 2.06

A concave mirror of radius of curvature 50 cm is used to form an image of an object kept at a distance of 25 cm from the mirror on its principal axis. What will be the position of the image from the mirror?