Mirror Images


Reasoning is one of the most important section in a Competitive exam. A good score in Reasoning test can lead you to score very good marks in competitive exams. This can be achieve only if you have a very good reasoning skills. Basically reasoning is divided into few sections according to logic and type. Mirror Images is one of them.

Mirror Image is the image or the reflection of an object into a mirror when that object is placed near it.

Different types of questions covered in this chapter are as follows

  1. Based on Vertical Mirror
  2. Based on Horizontal Mirror
  3. Mirror image of Letters and Numbers
  4. Mirror Image of Clocks

In case of standard form of mirror image i.e., when the mirror is placed vertically, the object gets laterally inverted. In order words, the Left Hand Side (LHS) and Right Hand Side (RHS) of an object interchange their places while top and button remain the same.

Let us see an example to get a better idea about the concept of mirror images

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Here, Fig. (ii) is the mirror image of Fig. (i). On combining these two figures.

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We get a 'heart' shaped figure which is symmetrical along an imaginary line which is used in place of the mirror


Objects having Different Mirror Images


Mostly the mirror image of a figure is different from the original figure which is because of the dissimilarity in the left and right halves of the figure. This can be better understood with the help of the below examples.

mirror-images-non-verbal-reasoning-introduction---mirror-images-problems

Objects having Identical Mirror Images


Sometimes it happens that mirror image formed is identical to the original figure. This is the case when LHS and RHS halves of the figure are similar to each other but in opposite directions. This can be better understood with the help of the below examples.

mirror-images-non-verbal-reasoning-introduction---mirror-images-problems

In the above discussion, the concept has been given about standard form of mirror image in which vertical mirror is used.

Now, we will discuss different types of questions based on placing of mirror on which questions are asked in various exams


Type #1: Based on Vertical Mirror


In such questions a vertical mirror is placed to the left or right of the object and standard form of mirror image is formed where the Left Hand Side (LHS) and Right Hand Side (RHS) of the object interchange their places while top and bottom remain unchanged.

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To get standard form of mirror image, the mirror is placed vertically to the left or right of the object and in both the cases, the image obtained is same.

case I When the mirror is placed vertically to the right of the object

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case II When the mirror is placed vertically to the left of the object


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  Memory Add-ons

For finding mirror image of object/figure, try to overlap the figure given in the options, along the mirror as the axis, then the option figure which exactly overlaps the original figure is the correct answer.

Your will get a better idea from the following examples about the various types of questions asked

Directions (Example Nos. 1-2) In each of the following questions you are given a figure followed by four alternatives (a), (b), (c) , (d) and (e). Choose the alternatives which is closely resembles the mirror image of the given combination.

Example 1: Choose the alternatives which is closely resembles the mirror image of the given combination.

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Solution: (e) Here, the mirror is placed vertically on the RHS on the question figure. Hence, only the figure given in answer figure (e) would be obtained as the correct mirror image.

Example 2: Choose the alternatives which is closely resembles the mirror image of the given combination.

mirror-images-non-verbal-reasoning-introduction---mirror-images-problems


Solution: (b) Here, the mirror is placed vertically on the RHS on the question figure. Hence, only the figure given in answer figure (b) would be obtained as the correct mirror image.


Type #2: Based on Horizontal Mirror


In such questions a horizontal mirror is placed at the top or bottom of the object and the image, so obtained is like the water image. In this type of question, LHS and RHS remain unchanged.

Let us see the two cases given below

case I When the mirror is placed horizontally at the top of the object

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case II When the mirror is placed horizontally at the bottom of the object

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The following examples will give you a better idea about such type of questions