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Up to what resolution image should be saved by using in the web?

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Up to what resolution image should be saved by using in the web?

(a) 23 ppi

(b) 34 ppi

(c) 72 ppi

(d) 100 ppi

This question was posed to me at a job interview.

The query is from Optimization of Images topic in section HTML Images & Web Page Files of HTML

1 Answer

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Best answer
Right choice is (c) 72 ppi

Easiest explanation: Images that are created for the web should be saved at a resolution of 72 ppi. Here ppi denotes pixels per inch. Resolution’s size is directly proportional to the size of the file. The resolution of the image is measured as a number of squares that fit within 1 inch x 1 inch square area.

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