If the refractive index of a medium is 1.5, what is the speed of light in that medium? (Speed of light in vacuum = 3 x 10^8 m/s)
Practice Questions
1 question
Q1
If the refractive index of a medium is 1.5, what is the speed of light in that medium? (Speed of light in vacuum = 3 x 10^8 m/s)
2 x 10^8 m/s
1.5 x 10^8 m/s
3 x 10^8 m/s
4.5 x 10^8 m/s
Speed of light in medium = c/n = (3 x 10^8 m/s) / 1.5 = 2 x 10^8 m/s.
Questions & Step-by-step Solutions
1 item
Q
Q: If the refractive index of a medium is 1.5, what is the speed of light in that medium? (Speed of light in vacuum = 3 x 10^8 m/s)
Solution: Speed of light in medium = c/n = (3 x 10^8 m/s) / 1.5 = 2 x 10^8 m/s.
Steps: 5
Step 1: Understand that the speed of light in a medium can be calculated using the formula: Speed of light in medium = Speed of light in vacuum / Refractive index.
Step 2: Identify the values you have: The speed of light in vacuum (c) is 3 x 10^8 m/s and the refractive index (n) is 1.5.
Step 3: Plug the values into the formula: Speed of light in medium = (3 x 10^8 m/s) / 1.5.
Step 4: Perform the division: 3 x 10^8 m/s divided by 1.5 equals 2 x 10^8 m/s.
Step 5: Conclude that the speed of light in the medium with a refractive index of 1.5 is 2 x 10^8 m/s.
