A 5-megapixel digital image has dimensions 1944 x 2592 pixels. The available sizes at a photo printer are given below. If a digital photo were printed on each size photo paper, which side would the photo fit exactly?

Question

anonymous · Answer

a. 5 in x 7in b. 8 in x 10 in c. 4 in by 6 in d. 2.5 in x 3.5 in (wallet size) e. none of these

anonymous · Answer

"You can find pixel size on some review sites, like http://www.dpreview.com, or the size of the sensor and number of pixels to derive the pixel size or spacing. For example, a 5 megapixel camera may have 2592 x 1944 pixels and a sensor size of 7.18 x 5.32 mm. Divide one dimension by the number of pixels in that dimension, e.g. 7.18 / 2592 = 0.0028 mm/pixel = 2.8 microns/pixel (a micron is one millionth of a meter or a micrometer). A 7 megapixel camera might have 3072 x 2304 pixels and a sensor size of 7.18 x 5.32 mm. That means the camera has 2.3 micron pixels. I liked the images from the 5 megapixel camera better when I compared 2 such cameras." - http://www.clarkvision.com/articles/how_many_megapixels/index.html the answer i believe is 5x7 or (a)!