Camera question..


by rhxoehwhfh
Tags: camera
rhxoehwhfh
rhxoehwhfh is offline
#1
Dec12-07, 10:42 PM
P: 105
Usha wants to take a picture of her own image in a plane mirror. At what distance should the camera lens be focussed if it is positioned 2.3 m in front of the mirror?


is it 2.3*2 ?... 4.6m ??
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rl.bhat
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#2
Dec12-07, 11:23 PM
HW Helper
P: 4,439
In mirror the object distance = image distance. Find the distance between Usha and her image and focus the camera.
rhxoehwhfh
rhxoehwhfh is offline
#3
Dec13-07, 06:52 PM
P: 105
so is it 4.6m?, since distance in the mirror is 2.3 m and image distance is also 2.3m

mgb_phys
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#4
Dec13-07, 06:54 PM
Sci Advisor
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P: 8,961

Camera question..


correct
rhxoehwhfh
rhxoehwhfh is offline
#5
Dec13-07, 07:37 PM
P: 105
thankyou sir


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