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An optician while testing the eyes finds...

An optician while testing the eyes finds the vision of a patient to be 6/12. By this means that

A

The person can read the letters of 6 inches from a distance of 12 m

B

The person can read the letters of 12 inches from 6 cm

C

The person can read the letters from 6m which the normal eye can read from 12 m

D

The focal length of eye lens had become half that of the normal eye.

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The correct Answer is:
3
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