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Q: The magnification of a mirror must be..........., for a virtual and erect image -
  • A. infinite
  • B. negative
  • C. positive
  • D. zero
Correct Answer: Option C - The magnification of the mirror is positive means that the image of the object will become virtual and erect. The process of making an object appear larger without changing its actual size is called magnification.
C. The magnification of the mirror is positive means that the image of the object will become virtual and erect. The process of making an object appear larger without changing its actual size is called magnification.

Explanations:

The magnification of the mirror is positive means that the image of the object will become virtual and erect. The process of making an object appear larger without changing its actual size is called magnification.