A small postage stamp is placed in front of a concave mirror

AI Thread Summary
The discussion centers on a physics problem involving a concave mirror and a postage stamp, where the image distance equals the object distance. Participants emphasize the importance of understanding whether the image is real or virtual, noting that if it's real, the object distance can be determined using the mirror's radius. They suggest calculating magnification using the formula -v/u, given that both distances are equal. Additionally, it's highlighted that real images formed by concave mirrors are always inverted. The conversation also touches on the importance of following forum rules and providing relevant equations for better assistance.
atoreta88
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Problem: A small postage stamp is placed in front of a concave mirror (radius=R), such that the image distance equals the object distance. (a) in terms of R, what is the object distance (b) what is the magnification of the mirror (c) state whether the image is upright or inverted relative to the object.

Any help would be appreciated! thank u!
 
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Please follow the rules of this forum and use the template when you seek help with homework. Show us the relevant equations and tell us what you tried and what you think about the problem. We just don't give answers away.
 
first of all what type of image are you talking about. is it real or virtual?
if it is a real image:
(a) do you know where the image lies if the object is at centre of curvature? aren't image and object at the same distance from the pole of mirror. if you exactly know what 'R' is, then you must be able to guess this one. i am not directly telling you the answer. just try it.
(b) magnification can be calculated in two ways: 1. -v/u and h of image/h of object. you simply know that image distance(v) = object distance(u). let both of them be x. now can you calculate the magnification?
(c) come on man. real images are always inverted. you know where image is formed when object is at C. it's so easy.
 
kuruman said:
Please follow the rules of this forum and use the template when you seek help with homework. Show us the relevant equations and tell us what you tried and what you think about the problem. We just don't give answers away.

I'm not asking for answers. I don't want straight up answers because that won't help me. The only reason I did not put down any relevant equations is because I have no idea where to even begin. Sorry if I broke the rules. So far no one has helped me with this problem and the only thing that anybody has told me is how stupid I am and how I'm not able to see the answer because apparently it's so "easy." I'm just going to my professor on this one. Thanks for nothing.
 
hey i have helped you out in my previous post atoreta88. if you still have problem then post it.
 
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