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When Albert Einstein was a boy of 16, he mulled over the following puzzler: A runner...

When Albert Einstein was a boy of 16, he mulled over the following puzzler: A runner looks at herself in a mirror that she holds at arm’s length in front of her. If she runs with nearly the speed of light, will she be able to see herself in the mirror? Analyze this question using the Principle of Relativity.

Science   Advanced-Physics   
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Answer #1

yeah she will be able to see herself in the mirror

because according to relativity principle speed of light is independent of frame of reference. It will be same for someone who is in rest state or somone who is moving.

So due to this theory speed of light will be same for this runner even she is moving with nearly the speed of light.

So light will go from runner to the mirror and bounce back in speed of light (even in moving frame of runner) and she will be able to see herself

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