
Concept explainers
(a)
The equation relating the focal length
(a)

Answer to Problem 54P
The equation relating the focal length
Explanation of Solution
Given info: The distance between the candle and the wall is
Write the expression of lens equation.
Here,
The sum of image and object distance is,
Substitute
Conclusion:
Therefore, the equation relating the focal length
(b)
The equation relating the focal length
(b)

Answer to Problem 54P
The equation relating the focal length
Explanation of Solution
Given info: The distance between the candle and the wall is
Write the expression of lens equation.
Here,
The final distance of object is,
The final distance of image is,
Substitute
Substitute
Thus, the equation relating the focal length
Conclusion:
Therefore, the equation relating the focal length
(c)
The value of
(c)

Answer to Problem 54P
The value of
Explanation of Solution
Given info: The distance between the candle and the wall is
Compare equation (2) and (4).
Conclusion:
Therefore, the value of
(d)
The focal length of the lens.
(d)

Answer to Problem 54P
The focal length of the lens is
Explanation of Solution
Given info: The distance between the candle and the wall is
The equation relating the focal length
Substitute
Thus, the focal length of the lens is
Conclusion:
Therefore, the focal length of the lens is
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Chapter 26 Solutions
Bundle: Principles of Physics: A Calculus-Based Text, 5th + WebAssign Printed Access Card for Serway/Jewett's Principles of Physics: A Calculus-Based Text, 5th Edition, Multi-Term
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