To solve the problem, we need to understand what it means when the magnification of an image is equal to one.
1. Understanding Magnification:
Magnification (M) is defined as the ratio of the height of the image (hi) to the height of the object (ho):
\[ M = \frac{h_i}{h_o} \]
2. If Magnification = 1:
This means:
\[ \frac{h_i}{h_o} = 1 \Rightarrow h_i = h_o \]
So, the image is of the same size as the object.
Final Answer:
The correct answer is option (C): Image is of the same size as that of object.