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Mirror 'X' is used to… (Class 10 Science 2025, Q13)

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ScienceCBSE Class 10 · Board exam 2025, set 31/1/1 · 1 mark · MCQ

CBSE Class 10 Science 2025: question 13

Set in the CBSE Class 10 board exam of 2025, paper 31/1/1, section A, question 13, for 1 mark. Try it first; the hints and our step-by-step solution are below.

Q13 · 1 mark · MCQLight – Reflection and Refraction

Mirror 'X' is used to concentrate sunlight in solar furnace and Mirror 'Y' is fitted on the side of the vehicle to see the traffic behind the driver. Which of the following statements are true for the two mirrors?
(i) The image formed by mirror 'X' is real, diminished and at its focus.
(ii) The image formed by mirror 'Y' is virtual, diminished and erect.
(iii) The image formed by mirror 'X' is virtual, diminished and erect.
(iv) The image formed by mirror 'Y' is real, diminished and at its focus.

  1. (A)(i) and (ii)
  2. (B)(ii) and (iii)
  3. (C)(iii) and (iv)
  4. (D)(i) and (iv)

Source: official question paper from cbse.gov.in (PDF). See it in the full 2025 board paper, set 31/1/1.

Hints

Open one hint at a time and try again before the next.

Hint 1

Identify the type of mirror used in a solar furnace and in a rear-view mirror.

Hint 2

Where is the image formed when the object is at infinity?

Step-by-step solution

Each step shows the marks it earns, as an examiner would award them. Checked by an independent re-solve from the question paper.

  1. X is a concave mirror. Sunlight comes from a very distant object, so the image is real, highly diminished and at the focus. Statement (i) is true.

  2. Y is a convex mirror. It always forms a virtual, erect and diminished image. Statement (ii) is true.

  3. The answer is option (A), (i) and (ii).

    1 mark

Answer: (i) and (ii), option (A)

Where the marks are

  • Chooses option (A) (1 mark)

Revise the chapter

Practise this chapterBoard-style questions from Light – Reflection and Refraction, one at a time, marked against the answer key and marking points.Back to the full paper2025 board paper, set 31/1/1: every question, by section.

The question is transcribed from the official paper; figures are described in words. The solution, hints and chapter tag are ours. Spotted an error? Write tosupport@questionbuddy.in.