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Complete the following sentence:All the distances are measured from the .......... of a spherical mirror.
All distances are measured from the pole of a spherical mirror.
Explanation
According to the New Cartesian Sign Convention, all the distances are measured from the pole of a spherical mirror.
The distances on the left side of the mirror from the pole (in front of the mirror) are given a negative sign. On the other hand, distances on the right side of the mirror from the pole (behind the mirror) are given a positive sign. Also, the image formed below the axis or downwards, it's given a negative sign, whereas the image formed above the axis or upwards, it's given a positive sign.
Updated on: 10-Oct-2022
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