Respuesta :
the answer is 2.3. I just answered this question and got it right.
Answer: The velocity of light in water is 225056264.1 m/s.
Explanation:
To calculate the speed of light in medium (water), we use the formula:
[tex]\eta=\frac{c}{v}[/tex]
where,
[tex]\eta[/tex] = index of refraction of water = 1.333
c = speed of light in vacuum = [tex]3\times 10^8m/s[/tex]
v = speed of light in water = ?m/s
Putting values in above equation, we get:
[tex]1.333=\frac{3\times 10^8}{v}\\\\v=2.2505626406\times 10^8m/s[/tex]
To round the speed of light in water to the nearest tenth place, we will multiply the exponent with the answer and then round off the tenth place.
[tex]2.2505626406\times 10^8=225056264.06[/tex]
Rounding 0.06 to 1 because 6 is more than 5, we get:
[tex]\Rightarrow 225056264.1m/s[/tex]
Hence, the velocity of light in water is 225056264.1 m/s.
