Question

The first estimation of the speed of light was based on observing _____.

lanterns
the moons of Jupiter
a rotating octagonal mirror
a lightbulb

Answer 1

The answer would be

B. The Moons of Jupiter

Answer 2

The correct answer "the moons of Jupiter"

Step-by-step explanation:

Hello! Let's solve this!

The first estimate of the speed of light was made by the Danish astronomer, Olaus Roemer, in 1676. After observing the moons of Jupiter, using the method of observing the eclipses of those moons. He did this by measuring the interval time of each eclipse.

The correct answer "the moons of Jupiter"