Q66P
Question
Where must you place an object in front of a concave mirror with radius R so that the image is erect and times the size of the object? Where is the image?
Step-by-Step Solution
Verified Answer
The object must be placed at 0.3R in front of a concave mirror and the image must be placed at 0.75R.
1Step 1: Determine the position of the object and the image
The radius is in the direction of the outgoing rays, thus, R is positive, also, the image is erect.
Use the formula of lateral magnification for a spherical mirror
Substituting the values
So, the position of the image
Therefore, the object must be placed at 0.3R in front of a concave mirror and the image must be placed at 0.75R.
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