इतिहास में ओले रोमर ने पहली बार प्रकाश की गति को किस वर्ष मापा था? A. 1776 B. 1676 C. 1876 D. 1867

In 1676 the Danish astronomer Ole Rømer first showed that light travels at a finite speed, by timing the eclipses of Jupiter's moon Io, which happened earlier or later depending on Earth's distance from Jupiter.