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Questions and Answers
Which unit is commonly used to measure the speed of light in vacuum?
Which unit is commonly used to measure the speed of light in vacuum?
- Kilometers per hour
- Miles per second
- Meters per second (correct)
- Miles per hour
According to the special theory of relativity, what is the upper limit for the speed at which conventional matter or energy can travel through space?
According to the special theory of relativity, what is the upper limit for the speed at which conventional matter or energy can travel through space?
- The speed of light (correct)
- The speed of sound
- The speed of electricity
- The speed of gravity
Which type of radiation travels at the speed of light?
Which type of radiation travels at the speed of light?
- X-rays
- Visible light (correct)
- Sound waves
- Radio waves
What noticeable effects does the finite speed of light have for long distances and very sensitive measurements?
What noticeable effects does the finite speed of light have for long distances and very sensitive measurements?
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Why can starlight viewed on Earth provide information about the history of the universe?
Why can starlight viewed on Earth provide information about the history of the universe?
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