Physics, asked by ahmadraza45517, 5 hours ago

the largest distance of distinct vision of a person is 4m. Find the focal length and type of the lens he will requires to see clearly an object at a distance of 20m

Answers

Answered by riteshsamanta91

2

Answer:

-1/5

Explanation:

1/f=1/v-1/u

the length formula

hope it will help you

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