12.3 The Young Double-spilt Experiment

Question 1

What does the young double split experiment prove evidence for

Answer 1

The wave nature ( the idea that objects are made of particles that move in waves ) of light

Question 2

Describe the young double split experiment

Answer 2

• light from a lamp is passed through a colour filter
• the light then passes through a single split filter followed by a double split filter
• then the light hits a screen ( where interference fringes are displayed )

Question 3

How do you reduce the error when measuring the fringe separation in the young double split experiment

Answer 3

Measure the distance across a number of fringes = n
Divide the number of spaces between them by n-1
N/n-1

Question 4

State a method to ensure that 2 wave sources are coherent

Answer 4

Pass the waves from the same source through a double split

Question 5

Define monochromatic light

Answer 5

Light of a single frequency