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Given that average speed is distance traveled divided by time, determine the values of m

m
and n
n
when the time it takes a beam of light to get from the Sun to the Earth (in s
s
) is written in scientific notation. Note: the speed of light is approximately 3.0×
×
108 m/s
m
/
s
.

User Dlamblin
by
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1 Answer

4 votes

Final answer:

The index of refraction can be calculated using the equation v = c/n, where v is the average speed. For the given values, m is 1 and n is approximately 1.00027.

Step-by-step explanation:

The index of refraction, n, can be calculated using the equation v = c/n, where v is the average speed. In the question, we are given that the average speed of light is 3.0×10^8 m/s. To determine the values of m and n, we can rearrange the equation as n = c/v. Substituting the given value of c and the calculated value of v in scientific notation, we get n = (3.0×10^8 m/s)/(2.9979×10^8 m/s).

Simplifying this equation, we can cancel out the units of meters per second, leaving us with n = 1.00027. Therefore, the value of m is 1 and the value of n is 1.00027.

Since the value of n is very close to 1, it indicates that the light is traveling through a vacuum or air, where the speed of light is essentially constant.

User Malcolm Box
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