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If the speed of light in vacuum is 3 x 10^8 m/s, what is its speed in a medium w
If the speed of light in vacuum is 3 x 10^8 m/s, what is its speed in a medium with a refractive index of 1.5?
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Practice Questions
1 question
Q1
If the speed of light in vacuum is 3 x 10^8 m/s, what is its speed in a medium with a refractive index of 1.5?
2 x 10^8 m/s
2.5 x 10^8 m/s
3 x 10^8 m/s
1.5 x 10^8 m/s
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Speed of light in a medium = speed of light in vacuum / refractive index = (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 speed of light in vacuum is 3 x 10^8 m/s, what is its speed in a medium with a refractive index of 1.5?
Solution:
Speed of light in a medium = speed of light in vacuum / refractive index = (3 x 10^8 m/s) / 1.5 = 2 x 10^8 m/s.
Steps: 6
Show Steps
Step 1: Identify the speed of light in vacuum, which is 3 x 10^8 m/s.
Step 2: Identify the refractive index of the medium, which is 1.5.
Step 3: Use the formula to find the speed of light in the medium: Speed of light in medium = Speed of light in vacuum / Refractive index.
Step 4: Substitute the values into the formula: Speed of light in medium = (3 x 10^8 m/s) / 1.5.
Step 5: Perform the division: 3 x 10^8 m/s divided by 1.5 equals 2 x 10^8 m/s.
Step 6: Conclude that the speed of light in the medium is 2 x 10^8 m/s.
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