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mamaluj [8]
3 years ago
7

The speed of light in a material is found to be 2.07 x 108 m/s. What is the most likely material from the options below if the s

peed of light in a vacuum is 3.00 x 108 m/s?
Physics
2 answers:
Paraphin [41]3 years ago
4 0

Answer:

1.3636

Explanation:

Write the expression for the refractive index.

n=c/v

c= speed of light in air

v= speed of light in material

=(3×10^8 m/s)/(2.2×10^8 m/s)

 =1.3636

Marta_Voda [28]3 years ago
3 0

Answer:

The material is silica quartz.

Explanation:

Given that,

Speed of light in material v=2.07\times10^{8}\ m/s

Speed of light  in vacuum c=3.00\times10^{8}\ m/s

We need to calculate the refractive index

Using formula of refractive index

n=\dfrac{c}{v}

Where, c = Speed of light  in vacuum

v=Speed of light  in material

Put the value into the formula

n=\dfrac{3.00\times10^{8}}{2.07\times10^{8}}

n=1.44

We know that,

Refractive index of silica quartz  is between 1.40 to 1.55

So, This is the refractive index of silica quartz.

Hence, The material is silica quartz.

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