Fully Constructive Interference Between Two Sinusoidal Waves of the Same $\degree$

question 38

Multiple Choice

Fully constructive interference between two sinusoidal waves of the same frequency occurs only if they:

• A) travel in opposite directions and are in phase
• B) travel in opposite directions and are 180 \(\degree\)out of phase
• C) travel in the same direction and are in phase
• D) travel in the same direction and are 180 \(\degree\)out of phase
• E) travel in the same direction and are 90 \(\degree\) out of phase

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