Concept explainers
(a)
The far point of the man.
(a)
Answer to Problem 66E
The far point of the man is
Explanation of Solution
Write the expression for the power of eye at near point.
Here,
Write the expression for the power of the eye at far point.
Here,
Write the expression for the power of the eye at far point.
Here,
Conclusion:
Substitute
Substitute
Substitute
Simplify the above expression as:
Simplify the above expression for the far point as:
Thus, the far point of the man is
(b)
The power of lens he needed.
(b)
Answer to Problem 66E
The power of lens he needed is
Explanation of Solution
Write the expression for the power of eye at near point.
Here,
Conclusion:
Substitute
Thus, the power of lens he needed is
(c)
The near point with the glasses.
(c)
Answer to Problem 66E
The near point with the glasses is
Explanation of Solution
Write the expression for the power of eye at near point.
Here,
Conclusion:
Substitute
Simplify the above expression for the near point.
Thus, the near point with the glasses is
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Chapter 24 Solutions
General Physics, 2nd Edition
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