​An Object Is Placed a Distance Y₀ = −2f in Front

question 22

Multiple Choice

​An object is placed a distance y₀ = −2f in front of a concave mirror of focal length f that is located at y = 0. An identical object is placed a distance ​y'₀ = −2f in front of a convex mirror of focal length −f that is located at y' = 0. The difference between the two image positions, y_i − y'_i, is

• A)​f /2.
• B)​f.
• C)​4f /3.
• D)​2f.
• E)​8​f​ /3.

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