Concave mirror producing an image 3 times larger than the object

AI Thread Summary
To produce an upright virtual image three times larger than the object using a concave mirror with a radius of curvature of 0.5 m, the object must be placed at a specific distance from the mirror. The discussion emphasizes the importance of showing work or prior attempts to solve the problem to receive effective help. Participants express frustration over the lack of initial effort in problem-solving. Clarification is sought on the meaning of "T.T," indicating a need for better communication. Understanding the principles of concave mirrors and magnification is crucial for solving this type of optics problem.
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A concave mirror has a radius of curvature of 0.5 m. At what position should and object be placed to produce an upright virtual image that is 3.0 times as large as the object?
I have just no clue for this question,, but I have to understand it T.T
can any1 help me please>..
 
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any one ? please.. T.T
 
That's rather impatient, waiting only 5 minutes! And you haven't even shown us any work!

What sort of thing have you done in class? Have you done any questions like this, or are there any examples in your book, or class notes on this? You need to show some work before we can help you.

Oh, and what does T.T mean?
 

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