A medical CT scanner currently captures images with a bit depth of 8 bits, allowing for 256 distinct grayscale levels. To improve diagnostic accuracy, the hospital upgrades the scanner's detector array so that it can resolve at least 12,000 distinct density levels per pixel. What is the minimum bit depth (in bits) required to represent at least this many distinct levels?
12 bits12\text{ bits}12 bits
13 bits13\text{ bits}13 bits
14 bits14\text{ bits}14 bits
16 bits16\text{ bits}16 bits
26 exam-style questions on AQA GCSE Computer Science Representing images. Each one has a worked solution and a mark scheme showing where the marks go.