Introduction
A water image is the reflection of an object in water. In this concept, the object is inverted vertically. This means the top part of the object becomes the bottom, and the bottom part becomes the top. However, the left and right sides remain the same. Understanding water images is a vital part of logical reasoning and intelligence tests for Class 7 students.
Explanation Step by Step
To find the water image of any figure, letter, or number, follow these simple steps:
Sub-topics
Water Image - Numbers, Letters, Figures
This sub-topic covers how individual characters and complex shapes change when reflected in water. For example, the letter "B" remains "B", but the letter "A" turns upside down.
Examples
Example 1: Letter 'E'
Example 2: Number '7'
Tricks and Shortcuts
* Letters that look the same in water: C, D, E, H, I, K, O, X. * Numbers that look the same in water: 0, 8. * Just turn your paper upside down and look at the reflection to quickly identify the answer!
Common Mistakes
* Do not confuse water images with mirror images. In mirror images, left and right are swapped. * Ensure the vertical alignment is perfect; do not shift the object sideways.
Practice Questions
Easy Questions
- What is the water image of the letter "H"?
- Which number looks exactly the same in its water image: 3, 0, or 7?
- Find the water image of the letter "C".
Medium Questions
- What is the water image of the word "CODE"?
- Identify the water image of the number "185".
- Find the water image of a triangle pointing upwards.
Hard Questions
- Find the water image of the alphanumeric string "A4K9Z".
- If a clock shows 3:00, what will its water image look like?
- Identify the water image of a complex figure containing a circle inside a square at the top-left corner.
Revision Summary
The water image is a vertical flip. Top becomes bottom, bottom becomes top. Left and right remains unchanged. Practice with letters like A, M, and W as they change significantly.
