Final answer:
To have a clear image on the wall, you need to reconfigure the projector by moving the lens closer to the panel.The correct option is option c .
Step-by-step explanation:
When the LCD projector is moved closer to the wall, the image formed on the wall becomes larger, but it may not be clear. In order to have a clear image on the wall, you need to reconfigure the projector by moving the lens closer to the panel.
This is because the magnified image of the LCD panel is focused on the wall by a converging lens. When the projector is moved closer to the wall, the distance between the lens and the wall decreases. To maintain the focus and clarity of the image, the lens needs to be moved closer to the panel.
Moving the lens further from the panel would actually decrease the magnification and make the image smaller, while moving it closer to the panel increases the magnification and makes the image larger.