A lift is falling freely under gravity. An observer in the lift has set up a laser
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Question:
A lift is falling freely under gravity. An observer in the lift has set up a laser pointer attached to the wall of the lift pointing in her coordinate systems at right angles so that the emerging beam is emitted normal to the wall.
Bearing in mind the principle of equivalence, what is the pathway of the photons across the lift?
What would an observer outside the lift standing on the Earth's surface observe about the light beam as the lift falls? It is a glass lift, so both observers can see the beam.
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Auditing A Business Risk Approach
ISBN: 978-0538476232
8th edition
Authors: Karla Johnstone, Audrey Gramling, Larry Rittenberg
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