Two Coherent Sources Emit Waves of Wavelength 2

question 17

Multiple Choice

Two coherent sources emit waves of wavelength 2.0 m in phase. If the difference in path lengths to an observer is 7.0 m, what kind of interference occurs?

• A) no interference occurs
• B) neither constructive nor destructive, but something in between
• C) constructive
• D) destructive

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Civil Rights

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