# Shared Flashcard Set

## Details

topic flash cards
5
Physics
06/29/2017

Term
 state the principle of superposition
Definition
 When two waves meet at a point, their resultant displacement is the vector sum of the individual displacements.
Term
 State the conditions necessary for a stationary wave to form
Definition
 Requires two progressive wave of the same frequency travelling in opposite directions along the same line. (If transverse they must also have the same plane of polarisation.)
Term
 State the formula used to calculate wavelength when two slit interference of lightis observed. State the meaning of each term in the formula.
Definition
 λ =xa/Dλ = wavelength of lightx = distance between adjacent fringesa = slit separationD = distance between slits and screen.
Term
 State the conditions necessary for a stationary wave to form.
Definition
 Requires two progressive wave of the same frequency travelling in opposite directions along the same line. (If transverse they must also have the same plane of polarisation.)
Term
 State what is meant by the term “coherence
Definition
 The phase relationship between two waves remains constant and does not vary with time.
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