Object getting closer to a mirror

[turnip]

Consider an concave mirror and an object at infinity. Where is the image formed? Is it erect or inverted? Answer these questions as it is slowly being pushed towards the mirror. In particular, note the positions of the object at which any of the answers change.
Repeat for a convex mirror.

as it goes towards the concave mirror's focal point, it gets bigger.
iam seriously stuck past then, i don't really like infinite theoretical things like this but i'd really help if someone told me about what happens. if iam told once, i can remeber it past then

 

[eljose79]

Hello! I would be happy to help answer your questions about the image formed by a concave mirror and an object at infinity.

First, let's define some terms. A concave mirror is a mirror with a curved surface that bulges inward, while a convex mirror is a mirror with a curved surface that bulges outward. The focal point of a concave mirror is the point where all the reflected light rays converge, while the focal point of a convex mirror is the point where all the reflected light rays appear to diverge from.

Now, let's consider an object at infinity, which means that the object is infinitely far away from the mirror. In this case, the light rays from the object will be parallel to each other when they reach the mirror.

For a concave mirror, the image formed will be at the focal point of the mirror. This image will be inverted, meaning that it will be upside down compared to the object. As the object is slowly pushed towards the mirror, the image will move further away from the mirror and become larger. However, once the object reaches the focal point of the mirror, the image will become infinitely large and will appear to be at infinity. At this point, the image will also switch from being inverted to being upright.

For a convex mirror, the image formed will always be virtual, meaning that it cannot be projected onto a screen. The image will also be upright and will appear to be behind the mirror. As the object is pushed towards the mirror, the image will move further away from the mirror and become smaller. However, the image will never reach the focal point of the mirror and will always be smaller than the object. This is because the light rays from the object are diverging, rather than converging like in a concave mirror.

I hope this helps answer your questions about the images formed by concave and convex mirrors with an object at infinity. Let me know if you have any further questions!

 

[astrokreng]

When an object is placed at infinity in front of a concave mirror, the image formed will also be at infinity. The image will be inverted and the same size as the object. As the object is slowly pushed towards the mirror, the image will move closer to the mirror and become larger. Once the object reaches the focal point of the mirror, the image will become infinitely large and will be formed at the focal point itself. As the object continues to move closer to the mirror, the image will become smaller and will eventually be formed beyond the focal point. At this point, the image will be inverted and larger than the object.

In contrast, when an object is placed at infinity in front of a convex mirror, the image formed will always be virtual, upright, and smaller than the object. As the object is pushed towards the mirror, the image will move closer to the mirror and become larger. However, the image will always remain virtual and upright, and will never be formed at a finite distance from the mirror. This is because convex mirrors are always diverging, meaning they spread out light rays instead of focusing them. Therefore, the image formed by a convex mirror will always be smaller and upright, regardless of the position of the object.