Suppose an Observer Sees a Spaceship with a Clock on It

question 13

Multiple Choice

Suppose an observer sees a spaceship with a clock on it hurtling past them at 80% of the speed of light. As it goes by, the second hand on the ship's clock ticks off 5 seconds. How much time elapsed on the observer's clock during this occurrence?

• A) more than 5 seconds if the spaceship is approaching the observer and less than 5 seconds if it is moving away from the observer
• B) less than 5 seconds
• C) more than 5 seconds
• D) 5 seconds-the same as on the ship's clock

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Definitions:

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A condition in which a person can respond to visual stimuli without consciously perceiving them due to damage in the visual cortex.