superposition of waves

Question 1

principle of superposition

Answer 1

when who or more waves meet at a point, the resultant displacement is the sum of the displacements of the individual waves

Question 2

diffraction

Answer 2

the spreading of a wave when it passes through a gap or past the edge of an object

Question 3

interference

Answer 3

the superposition of two or more waves from coherent sources

Question 4

constructive interference

Answer 4

when two waves reinforce to give increases amplitude at a point in space

Question 5

destructive interference

Answer 5

when two waves cancel to give reduced amplitude at a point in space

Question 6

coherent sources

Answer 6

two sources with exactly same frequency, and have zero or constant phase difference

Question 7

path difference

Answer 7

the extra distance travelled by one of the waves compared with the other. Path difference is often given in terms of the wavelength of the waves

Question 8

interference maxima

Answer 8

regions where light waves from two slits arrive in phase with each other; in other words, there is constructive interference

Question 9

coherence

Answer 9

term used to describe two waves emitted from two sources that have a constant phase difference. The sources emitting such waves are referred to as coherent sources

Question 10

the double slit equation

Answer 10

https://www.savemyexams.co.uk/a-level/physics/cie/22/revision-notes/8-superposition/8-2-diffraction–interference/8-2-4-youngs-double-slit-experiment/

Question 11

dispersion

Answer 11

the splitting of light into its component waves