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Chapter 1: Problem 22

A reporter once described a light-year as "the time it takes light to reach us traveling at the speed of light." How would you correct this statement?

Short Answer

Expert verified
A light-year is not a measurement of time, but a measure of distance. So, the correct statement should be, 'A light-year refers to the distance that light can cover in one year, while traveling at the speed of light.'

Step by step solution

01

Correct Interpretation

Identify the error in the statement: 鈥淭he time it takes light to reach us traveling at the speed of light.鈥� Here, a light-year is described as a unit of time, which is incorrect.
02

Understand the Concept of Light-Year

Understand that a light-year is a measure of space or distance. It calculates how far light travels in one year.
03

Formulate the Correct Statement

After understanding the concept of a light-year as a unit of distance, correct the statement. So instead, a more accurate description of a light-year would be: 'A light-year is the distance that light can cover in one year while traveling at the speed of light.'

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