Change set

Pick exam & year, then Go.

Question map
Not attempted Correct Incorrect ★ Bookmarked
Loading…
Q7 (NDA-I/2012) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Geometrical optics Answer Verified

Statement I: Convex mirror is used as a driver mirror. Statement II : Images formed by convex mirror are diminished in size.

Result
Your answer: —  Â·  Correct: A
Explanation

Statement I is true as convex mirrors are standardly used as rear-view or driver mirrors in vehicles [1]. Statement II is also true because convex mirrors always produce images that are virtual, erect, and diminished (smaller) in size compared to the object [4]. The diminished nature of the image is the direct reason why Statement I is true; because the images are smaller, the mirror can capture a much wider field of view [1]. This allows the driver to see a significantly larger area of traffic behind the vehicle than would be possible with a plane mirror of the same size [1]. Therefore, Statement II provides the correct scientific explanation for the application described in Statement I, facilitating safer driving by expanding the driver's perspective [3].

Sources

  1. [1] Science , class X (NCERT 2025 ed.) > Chapter 9: Light – Reflection and Refraction > Uses of convex mirrors > p. 142
  2. [2] Science ,Class VIII . NCERT(Revised ed 2025) > Chapter 10: Light: Mirrors and Lenses > Activity 10.3: Let us explore > p. 156
  3. [3] Science , class X (NCERT 2025 ed.) > Chapter 9: Light – Reflection and Refraction > Activity 9.5 > p. 141
  4. [4] 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.
60%
got it right
✓ Thank you! We'll review this.

SIMILAR QUESTIONS

5 Cross-Linked PYQs

UPSC repeats concepts across years. Login to see how this question connects to 5 others.

Login with Google