Water Images— Concepts, Formulas & Shortcuts
- A water image flips TOP and BOTTOM; a mirror image flips LEFT and RIGHT.
- The left-to-right order of characters is UNCHANGED in a water image.
- Capitals unchanged in a water image: B, C, D, E, H, I, K, O, X.
- Digits unchanged in a water image: 0, 3, 8 (and 1 in most exam fonts).
- A word made only of horizontally symmetric letters looks identical in water.
- Letters like A, M, T, U, V, W, Y survive a MIRROR but not a water image.
Water Images Practice Questions with Answers
Attempt each question first, then open the explanation. All 8 questions below are free to read and require no signup.
Q1.A water image reverses which pair of directions?
Easy- ALeft and right
- BTop and bottom
- CFront and back
- DNone
Water Images question 1 of 8+Show Answer & Explanation
Answer: B. Top and bottom
Explanation: Reflection in a horizontal surface swaps top with bottom.
Q2.Which capital letter looks unchanged in a water image?
Moderate- AA
- BH
- CM
- DT
Water Images question 2 of 8+Show Answer & Explanation
Answer: B. H
Explanation: H is symmetric about its horizontal axis; A, M and T are not.
Q3.In a water image, the left-to-right order of letters in a word:
Moderate- AIs reversed
- BStays the same
- CBecomes vertical
- DIs doubled
Water Images question 3 of 8+Show Answer & Explanation
Answer: B. Stays the same
Explanation: Only top and bottom swap, so horizontal order is untouched.
Q4.Which of these words would look unchanged in a water image?
Difficult- ACODE
- BTIME
- CMAST
- DPLAY
Water Images question 4 of 8+Show Answer & Explanation
Answer: A. CODE
Explanation: C, O, D and E are all horizontally symmetric, and water images preserve letter order.
Q5.Which digit is unchanged in a water image?
Moderate- A2
- B5
- C8
- D9
Water Images question 5 of 8+Show Answer & Explanation
Answer: C. 8
Explanation: 8 is symmetric about its horizontal axis, so it reflects onto itself.
Q6.The letter A looks unchanged in:
Difficult- AA water image only
- BA mirror image only
- CBoth
- DNeither
Water Images question 6 of 8+Show Answer & Explanation
Answer: B. A mirror image only
Explanation: A is symmetric about its vertical axis, so it survives a mirror but not a top-to-bottom flip.
Q7.A water image is formed by reflection in:
Easy- AA vertical mirror
- BA horizontal surface
- CA curved lens
- DA prism
Water Images question 7 of 8+Show Answer & Explanation
Answer: B. A horizontal surface
Explanation: The reflecting surface lies horizontally beneath the object, as still water does.
Q8.Which set contains only letters that survive a water image unchanged?
Moderate- AA, M, T
- BB, C, D
- CN, S, Z
- DP, Q, R
Water Images question 8 of 8+Show Answer & Explanation
Answer: B. B, C, D
Explanation: B, C and D are each symmetric about the horizontal axis.
Water Images — Frequently Asked Questions
What is the difference between a mirror image and a water image?+
A mirror image reverses left and right and therefore reverses the order of letters in a word. A water image reverses top and bottom, leaving the letter order exactly as it was.
Which letters look the same in a water image?+
Those symmetric about a horizontal axis: B, C, D, E, H, I, K, O and X. Note that A and M, which survive a mirror, do not survive water.
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