Final answer:
To determine which image of Charlie is real in a physics context, one must observe the tilt of Charlie's hat as real images have a specific tilt direction that is different from that of virtual images.
Step-by-step explanation:
In the context of the provided information, the question "The sign for "hat" involves patting your head. A. True B. False" appears to be using "hat" metaphorically to describe an aspect of an image in a physics problem, rather than literally asking for a sign for "hat" in a language or communication context. From the given hints, the real Charlie can be identified by the direction his hat is tilted.
If it is specified that real images have their hats tilted to a particular side, then we can determine which image of Charlie is the real one by observing the tilt of the hat. In this scenario, we should look for the following traits: a. The virtual images have their hats tilted to the right, or b. The virtual images have their hats tilted to the left, and then the opposite tilt would be the indication of the real image.
So, to identify the real image without knowing the specific tilt direction for virtual images: c. If real images have their hats tilted to the right, then the real Charlie would have his hat tilted to the right. Likewise, d. If real images have their hats tilted to the left, then the real Charlie would exhibit that characteristic.