what do you mean by mirror formula
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The derivation of the mirror formula is one of the most common questions asked in various board examinations as well as competitive examinations. A mirror formula can be defined as the formula which gives the relationship between the distance of object ‘u’, the distance of image ‘v’, and the focal length of the mirror ‘f’. The mirror formula is applicable for both, plane mirrors and spherical mirrors (convex and concave mirrors). The mirror formula derivation is provided here so that students can understand the concept of the topic in a better way. The mirror formula is written as:
Derivation Of Mirror Formula
Assumptions for Derivation Of Mirror Formula
The following assumptions are taken in order to derive the mirror formula.
The distances are being measured from the pole of the mirror.
According to the convention, the negative sign indicates the distance measured in the direction opposite to the incident ray while the positive sign indicates the distance measured in the direction of the incident ray.
The distance below the axis is negative whereas the distance above is positive.
Mirror Formula Derivation
The derivation of mirror formula is given below. The diagram given below will help learners to understand the mirror formula derivation more effectively....
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mirror formula can be defined as a formula which gives relationship between distance of the subject ' u ' , the distance of image ' v ' and the focal length of the mirror .
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