Question

Predict and write the reason why the value of distance of object is negative in mirror equation

Answer 1

Answer:

the value of distance of object is negative in mirror equation. This is because of the sign convention. as per the sign convention the value of image always be negative .

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Answer 2

The reason why the value of the distance of the object is negative in the mirror equation is:

i) The direction of the incident rays must be taken as positive.

ii) The object distance is measured in the opposite direction of the incident rays (from the pole to the object).

We need to understand the sign conventions extensively in order to predict the signs in mirror equations.