Concept explainers
(a)
The distance in front of the sensor and the lens if the object to be photographed is away.
Answer to Problem 49P
Solution:
Explanation of Solution
Given:
focal length lens is used to focus an image on the sensor of a camera. The maximum distance allowed between the lens and the sensor place is . I.e.,
Object distance, .
Image distance, .
Focal length, .
Formula used:
Lens equation,
and are lens to object and lens to image distances respectively, negative when opposite to optical path and positive when in the direction of optical path.
Calculation:
The distance in front of the sensor and the lens if the object to be photographed is away is calculated using lens formula.
Here value of and are given, i.e., and . Thus substituting them in formula we get-
(b)
The distance in front of the sensor and the lens if the object to be photographed is away.
Answer to Problem 49P
Solution:
.
Explanation of Solution
Given:
focal length lens is used to focus an image on the sensor of a camera. The maximum distance allowed between the lens and the sensor place is . I.e.,
Object distance, .
Image distance, .
Focal length, .
Formula used:
Lens equation,
and are lens to object and lens to image distances respectively, negative when opposite to optical path and positive when in the direction of optical path.
Calculation:
The distance in front of the sensor and the lens if the object to be photographed is away is calculated using lens formula.
Here value of and are given, i.e., and . Thus substituting them in formula we get-
(c)
The distance in front of the sensor and the lens if the object to be photographed is away.
Answer to Problem 49P
Solution:
.
Explanation of Solution
Given:
focal length lens is used to focus an image on the sensor of a camera. The maximum distance allowed between the lens and the sensor place is . I.e.,
Object distance, .
Image distance, .
Focal length, .
Formula used:
Lens equation,
and are lens to object and lens to image distances respectively, negative when opposite to optical path and positive when in the direction of optical path.
Calculation:
The distance in front of the sensor and the lens if the object to be photographed is 1.0m away is calculated using lens formula.
Here value of and are given, i.e., and . Thus substituting them in formula we get-
(d)
The closest object photographed sharply by the lens.
Answer to Problem 49P
Solution:
.
Explanation of Solution
Given:
focal length lens is used to focus an image on the sensor of a camera. The maximum distance allowed between the lens and the sensor place is . I.e.,
Object distance, .
Object distance, .
Object distance, .
Image distance, .
Focal length, .
Formula used:
Lens equation,
and are lens to object and lens to image distances respectively, negative when opposite to optical path and positive when in the direction of optical path.
Calculation:
The closest object photographed sharply by the lens is calculated using lens formula.
Here value of and are given, i.e., and . Thus substituting them in formula we get-
Chapter 23 Solutions
Physics: Principles with Applications
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