Superposition

Question 1

Explain what is meant by
1. Diffracted waves
2. Coherent waves

Answer 1

Diffracted: waves spread at each slit/gap.

Coherent: contant phase difference between each of the waves.

Question 2

Lernen Sie die Formulae bitte

Question 3

Principle of superposition

Answer 3

1. When two or more waves meet at a point.
2. Resultant displacement is the sum of the individual displacement

Question 4

W 18 qp 21
The intensity of the light incident on the double slit is now increased without altering its frequency. Compare the appearance of the fringes after this change with their appearance before this change.

Answer 4

1. No change to fringe separation.
2. Bright fringes are brighter.
3. Dark fringes are unchanged.