The speed of light when it passes through the new type of glass is 2.04×10^8 m/s.
What is refractive index:
Refractive Index is a value calculated from the ratio of the speed of light in a vacuum to that in a second medium of greater density.
The refractive index variable is denoted by the letter ' n '.
Here,
The refractive index of a new type of glass is 1.47
n = 1.47
The speed of light in air is c = 3×10^8 m/s
The formula for refractive index:
where v is the speed of light in new type of glass.
Substituting the values into the equation,
1.47 = 3×10^8 / v
v = 3×10^8 / 1.47
v = 2.04 ×10^8 m/s
Hence,
the speed of light when it passes through the new type of glass is 2.04×10^8 m/s
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