12.2 Interference Flashcards

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1
Q

When does constructive interference occur

A

When interfering waves are in phase / when waves that are interfering with one another are in phase

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2
Q

Define interference

A

When 2 waves superpose ( overlap each other )

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3
Q

What is the path difference between 2 points on a wave

A

The fraction of a wavelength by which one point is behind the other

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4
Q

When does destructive interference occur

A

When the interfering waves are in antiphase ( when waves are oscillating completely out of phase with each other, one is at its max pos displacement/amplitude and the other is at to max neg displacement/amplitude )

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5
Q

What is an interference pattern

A

A pattern of constructive and destructive interference formed as waves overlap

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6
Q

Define in phase

A

Particles oscillating perfectly in time with each, as a result reaching their maximum positive displacement, are in phase

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