3B.4 Wave interference

Question 1

how can you create standing waves other damn using reflection?

Answer 1

1. by using two-source interference

2. two-slit interference

Question 2

how is the two-slit interfernce displayed

Answer 2

it was first displayed by young using a simple laboratory setup with a touch that would show a dark and bright

Question 3

in order for the waves to be within the phase to produce an antinode the phase difference needs to be

Answer 3

a whole number if it’s not a whole number then they would remain in an anti-phase

Question 4

what are fringes

Answer 4

the bright and dark spots in light interfere with experiments

Question 5

is an order for an interference pattern to form the light from the two slits must be

Answer 5

coherent, that is why we can use a distributed source of light like a filament bulb

Question 6

why do we use a single slit before we use a double slit

Answer 6

the slit one is a source of light for the double-slit so the light when it reaches it would be coherent

Question 7

what is young fringe formula

Answer 7

x = wavelenght x D / a