Finding Images of a Red Ball at Point A: Location & Number

[rayhan619]

Homework Statement

A red ball is placed at point A in the figure. (Intro 1 figure) : figure attached

How many images are seen by an observer at point O?

Where is each image seen by an observer located?
Enter your answers as an ordered pairs (x, y) separated with comma(s), where x and y are in meters. Assume the origin is at the corner of the mirror, +x axis is directed to the right, and +y axis is directed upward.

Homework Equations

The Attempt at a Solution

i guess the answer of first question is 3
but i donno how to do 2nd part

 

[tiny-tim]

Enter your answers as an ordered pairs (x, y) separated with comma(s), where x and y are in meters. Assume the origin is at the corner of the mirror, +x axis is directed to the right, and +y axis is directed upward.
…
i guess the answer of first question is 3
but i donno how to do 2nd part

Hi rayhan619!

Well, the object is at (-1,-2), so the three images are at … ?

 

[nlightner]

I would like to clarify a few things before providing a response. Firstly, the figure attached is not visible, so it is unclear what the setup is. Secondly, the term "observer" is not specific enough. Is the observer a human with naked eyes, a camera, or a scientific instrument? Thirdly, the term "mirror" is mentioned, which suggests that the red ball is being reflected. Without a proper explanation of the setup, it is difficult to provide a precise response.

Assuming that the figure attached is a setup with a mirror and the observer is a human with naked eyes, the answer to the first question would be 2, not 3. This is because the observer would only see the direct image of the red ball and its reflection in the mirror, making a total of two images.

As for the second question, without knowing the exact setup and the location of the observer, it is impossible to provide an accurate response. The location of each image would depend on the angle of incidence and reflection, the distance between the red ball and the mirror, and the distance between the mirror and the observer. These parameters would need to be specified in order to determine the exact location of each image.