Mirror and Water Image

Concept & Tricks

• Mirror Image: When an object is placed in front of a mirror, the image formed is reversed laterally (left becomes right and right becomes left).
• Water Image: When an object is placed near a water surface, the image formed is vertically inverted (top becomes bottom).
• Alphabets and digits are commonly asked in SSC, Railway, and State exams. Some characters remain same or change slightly.

Mirror Image Rules

• Left ↔ Right change in position
• Common mirror direction is vertical (along Y-axis).
• For numbers: 2 ↔ 5, 6 ↔ 9, others may look flipped

Example: Mirror image of "CAT" is "Ɉ∀Ɔ"

Water Image Rules

• Top ↔ Bottom gets inverted
• Water image is formed along the horizontal axis (X-axis)
• Characters like A, M, W remain same in water image

Example: Water image of "123" appears as vertically inverted "Ɛ Ↄ Ↄ"

Previous Year Questions with Solutions

1. SSC CHSL 2022: What is the mirror image of the word "BOX"?
   Solution: Mirror image = "XOᗺ"
2. RRB NTPC 2021: Find the mirror image of the number "2865".
   Solution: Mirror image = "5982"
3. SSC CGL 2020: If a clock shows 3:15, what will be the mirror image time?
   Solution: 12:00 - 3:15 = 8:45
4. HSSC 2019: What is the water image of the letter 'K'?
   Solution: Water image = Vertically inverted 'K'
5. SSC MTS 2018: Identify the correct mirror image of "MIRROR" from the options.
   Solution: Correct mirror image = "ᴚOᴚᴚIM"