Question

The speed of light (v) in a material is determined
using the speed of light in a vacuum (c) and the
index of refraction (n) of the material. Calculate the
speed of light in the following materials.
v = c/n
a. water (n = 1.33): __________________________
b. b. glass (n = 1.50): ___________________________
c. ice (n = 1.31): _____________________________
d. diamond (n = 2.42): ________________________

Answer 1

Answer:

Speed of light in the water. =812,030,075 km/h

Speed of light in the glass. =720,000,000 km/h

Speed of light in the ice =824,427,480 km/h

Speed of light in the diamond=446,280,991 km/h

Explanation:

Speed of light in the vacuum(c)=1,080,000,000km/h

So, the formula is v=c/n

then substitute the values in the formula and you will get the above answers.