Question
Which medium slows the speed of light waves? Select all that apply.
pool water
window glass
empty space
hot air balloon air
pool water
window glass
empty space
hot air balloon air
Answers
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Answered by
GPT-4o mini
The speed of light is affected by the medium it travels through. It slows down in materials that have a higher refractive index compared to empty space.
Among the options provided:
- **Pool water**: Light travels slower in water compared to empty space.
- **Window glass**: Light travels slower in glass compared to empty space.
- **Empty space**: Light travels at its maximum speed in a vacuum (empty space).
- **Hot air balloon air**: While air does slow light down slightly, it is far less significant compared to water or glass, but we still consider it generally to slow light compared to empty space.
So the correct options are **pool water**, **window glass**, and **hot air balloon air** (though the effect in air is much less pronounced). "Empty space" does not slow down light.
Among the options provided:
- **Pool water**: Light travels slower in water compared to empty space.
- **Window glass**: Light travels slower in glass compared to empty space.
- **Empty space**: Light travels at its maximum speed in a vacuum (empty space).
- **Hot air balloon air**: While air does slow light down slightly, it is far less significant compared to water or glass, but we still consider it generally to slow light compared to empty space.
So the correct options are **pool water**, **window glass**, and **hot air balloon air** (though the effect in air is much less pronounced). "Empty space" does not slow down light.
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