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When A0 is increased and x is doubled, I is doubled. What is the new A?

+1 vote
The original scenario is a point source of light of amplitude A0 gives rise to a particular light intensity when viewed at a distance from the source

There's 4 options:

A. 2A0

B. 2 sqrt(2)A0

C. 4A0

D. 8A0
asked Dec 19, 2017 in Physics by sagecai (130 points)

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