6. Sudhir noticed that when he bring a book very
close to his eyes the word written in the books
appeared blurred. What is the approximate
minimum distance upto which an human eye
can read the word written in the book clearly?
(a) 20 cm
(b) 22 cm
(c) 25 cm
(d) 30cmप्लीज आंसर
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Answer:
20
Explanation:
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