Question

insan ki najr kitni duri tak dekh sakti h​

Answer 1

Answer:

Visual acuity and your eyesight

That simply means that you can clearly see something 20 feet away that you should be able to see from that distance. If you have 20/100 vision, you would still be able to see an object clearly from 20 feet away, but someone with normal vision would see it clearly from 100 feet