Final answer:
When the start button pops out on a device, the light can stay on for a variable duration depending on the specific device and its settings.
Step-by-step explanation:
When the start button pops out on a device, the light can stay on for a variable duration depending on the specific device and its settings. The light may stay on until the start button is pressed again to turn it off, or it may have a built-in timer that automatically turns off the light after a certain period of time.
For example, let's consider a computer's power button. When you press the power button, it pops out and the computer turns on. The power indicator light on the button may stay on as long as the computer is powered on. When you shut down the computer, the light will turn off.
It's important to consult the user manual or contact the manufacturer of the specific device to determine how long the light can stay on after the start button is pressed. They can provide the most accurate information regarding the device's functionality and settings.