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Question

American chemist Gilbert Newton Lewis proposed a unit of time called the "jiffy". According to Lewis, 1 jiffy= the time it takes light to travel one centimeter.

a. If u perform a task in a jiffy, how long does it take to do the task in seconds? (use speed of light c= 2.9979x 10^8 m/s)

b. How many jiffys are in one minute?

Please help this is extra credit which i really need!!

Answer 1

If light travels at 2.9979x10^8 meters per second, then it takes 1/c, or  3.33567x10^-11 seconds to travel one meter and 1/c/100 or 3.33567x10-13 seconds to travel one centimeter, or one jiffy.

a. 3.33567x10-13 seconds to do the task in a jiffy

b. 1/jiffy, or 2.9979x10^12 jiffies per second, or 1.7987x10^14 jiffies in a minute.