Question
car is moving towards a person at 0.02 km/s. The speed of light is 300,000 km/s. What speed would the person measure for light coming from the car's headlights? (1 point)
• 300,000.02 km/s
0 0.02 km/s
• 299,999.98 km/s
• 300,000 km/s
• 300,000.02 km/s
0 0.02 km/s
• 299,999.98 km/s
• 300,000 km/s
Answers
GPT-4o mini
According to the principles of relativity, the speed of light in a vacuum is always measured to be \(300,000\) km/s, regardless of the motion of the source or the observer.
So, for the person measuring the light coming from the car's headlights, the speed they would measure for light is:
**300,000 km/s**.
The other options would incorrectly imply that speeds can add in a classical sense, which is not how light behaves in relativity.
So, for the person measuring the light coming from the car's headlights, the speed they would measure for light is:
**300,000 km/s**.
The other options would incorrectly imply that speeds can add in a classical sense, which is not how light behaves in relativity.