Concept explainers
The length of image of the sun on a camera sensor with different focal lengths.
Answer to Problem 87GP
Solution:
Solution can be provided by magnification formula of lenses.
Explanation of Solution
Given:
Focal length of camera sensor is 35 mm
Diameter of Sun = 1∙ 4×106 km = 1∙ 4×109 m
Distance of sum from earth (object)= 1∙ 5×108 km = 1∙ 5×1011 m
Formula used:
Magnification of object by lenses is given by
, where and is height of object and height of image and are distance of image and object.
Since Sun is very far from us then image would be formed at focal length, at f.
so, from the magnification formula
Calculation:
So, height of image of Sun,
The length of image of the sun on a camera sensor with different focal lengths.
Answer to Problem 87GP
Solution:
Solution can be provided by magnification formula of lenses.
Explanation of Solution
Given:
Focal length of camera sensor is 50 mm
Diameter of Sun = 1∙ 4×106 km = 1∙ 4×109 m
Distance of sum from earth (object)= 1∙ 5×108 km = 1∙ 5×1011 m
Formula used:
Magnification of object by lenses is given by
, where is height of object and height of image and are distance of image and object.
Since Sun is very far from us then image would be formed at focal length, at f.
So, from the magnification formula
Calculation:
The length of image of the sun on a camera sensor with different focal lengths.
Answer to Problem 87GP
Solution:
Solution can be provided by magnification formula of lenses.
Explanation of Solution
Given:
Focal length of camera sensor is 105 mm
Diameter of Sun = 1∙ 4×106 km = 1∙ 4×109 m
Distance of sum from earth (object)= 1∙ 5×108 km = 1∙ 5×1011 m
Formula used:
Magnification of object by lenses is given by
, where is height of object and height of image and are distance of image and object.
Since Sun is very far from us then image would be formed at focal length, at f.
So, from the magnification formula
Calculation:
Chapter 23 Solutions
Physics: Principles with Applications
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