You Are Observing the Andromeda Galaxy Using Both Photographic Plates

Multiple Choice

You are observing the Andromeda Galaxy using both photographic plates and a CCD. If you double the exposure time for both detectors, you:

A) double the amount of light collected on both the photographic plate and the CCD
B) double the amount of light collected on the CCD, but the photographic plate collects less
C) double the amount of light collected on the photographic plate, but the CCD collects less
D) double the amount of light collected on the photographic plate, but the CCD collects more
E) collect less than twice the amount of light on both the photographic plate and the CCD