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  9. Q151

RRB Technician (Grade I Signal + Grade III) 2026 · Question 151 of 265

When several rays parallel to the principal axis fall on a concave mirror, how do the reflected rays behave?

  1. AThey spread out and appear to come from behind the mirror.
  2. BThey are reflected back along the same path.
  3. CThey travel parallel to the principal axis after reflection.
  4. DThey all meet at a single point on the principal axis.Correct

Answer: D. They all meet at a single point on the principal axis.

Official answer key verified. Detailed explanation coming soon.

Source: RRB Technician Grade III 09-Mar-2026 Shift 3 (oliveboard compilation with answer key) · reliable-secondary

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