Which one of the following is not a unit of distance? Foot Path, Light Year, Heavy Year, Foot Candle

Which one of the following is not a unit of distance? Foot Path, Light Year, Heavy Year, Foot Candle

مندرجہ ذیل میں سے کون سی فاصلے کی اکائی نہیں ہے؟
Explanation

A foot-candle is a non-SI unit of illuminance or light intensity.