🎙 Concept / आधार
Non-Verbal Reasoning में Mirror Image (दर्पण प्रतिबिंब) और Water Image (जल प्रतिबिंब) सबसे आसान और frequently asked topics हैं।
Delhi Police में हमेशा basic left-right और up-down reflection पर आधारित questions आते हैं।
✔ Key Rules / मुख्य नियम
Mirror Image (दर्पण प्रतिबिंब)
→ Mirror placed on LEFT or RIGHT
→ Image flips in left-right direction
→ Top–Bottom remains SAME
Water Image (जल प्रतिबिंब)
→ Water surface at BOTTOM
→ Image flips in top-bottom direction
→ Left–Right remains SAME
Tip: बस यह याद रखें — Mirror = Left-Right change, Water = Top-Bottom change.
✔ Solved Examples (Delhi Police Pattern)
Example 1 – Mirror Image:
Original: A B C → Mirror on right
Mirror Image: C B A
Rule: Reverse horizontally.
Example 2 – Mirror Image:
Original: 3 7 5
Mirror Image: 5 7 3
Example 3 – Water Image:
Original:
1
2
3
Water Image:
3
2
1
Rule: Flip vertically.
Example 4 – Water Image:
Original: ABC
Water Image: ABC (just upside-down shape)
✔ Practice MCQs
- If mirror is placed on right side of "PQ", mirror image will be?
Ans: QP
- Mirror image of 392?
Ans: 293
- Water image of "UP"?
Ans: UP (but upside-down orientation)
- Mirror image of L-shaped figure faces which direction?
Ans: Opposite direction (left-right reversed)
- Water image of number 86?
Ans: 86 (top-bottom flipped)
- Mirror on left of "N"?
Ans: N (but horizontally reversed shape)
- Mirror image of "E3"?
Ans: 3E
- Water image of 199?
Ans: 661
- Mirror image of "TOY"?
Ans: YOT
- Water image of arrow ↑?
Ans: ↓
🔥 Challenge Question
Find the mirror image of 2 0 2 5 when mirror is placed on right side.
Reverse horizontally → 5 2 0 2
Motivation: Mirror & Water Image हर साल आता है —
2 मिनट में पूरा chapter strong! 🚓🔥