When the human eye is focused on an object,at what position are the ciliary muscles least strained?

  • A
    Far from the eye
  • B
    Very close to the eye
  • C
    $25 \ cm$ from the eye
  • D
    $1 \ m$ from the eye

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Similar Questions

$A$ man can see clearly up to $3 \, m$. Prescribe a lens for his spectacles so that he can see clearly up to $12 \, m$.

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$A$ person who can see things most clearly at a distance of $10 \, cm$ requires spectacles to enable him to see clearly things at a distance of $30 \, cm$. What should be the focal length of the spectacles?

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