Superposition of Waves

Question 1

Principle of Superposition

Answer 1

When two or more waves overlap, the resultant displacement at any point is the sum of the displacements due to each wave.

Question 2

Constructive Interference

Answer 2

Occurs when waves meet in phase, resulting in increased amplitude.

Question 3

Destructive Interference

Answer 3

Occurs when waves meet out of phase, resulting in decreased or zero amplitude.

Question 4

Coherence

Answer 4

Two wave sources are coherent if they have a constant phase difference and the same frequency, essential for stable interference patterns.

Question 5

Phase Difference

Answer 5

The difference in phase between two points on a wave or between two waves.

Question 6

Path Difference

Answer 6

The difference in the distances two waves travel from their sources to a specific point.

Question 7

Standing Waves

Answer 7

Formed by the superposition of two waves traveling in opposite directions with the same frequency, resulting in a pattern that appears stationary.

Question 8

Nodes

Answer 8

Points in a standing wave where the displacement is always zero due to destructive interference.

Question 9

Antinodes

Answer 9

Points in a standing wave where the displacement reaches maximum amplitude due to constructive interference.

Question 10

Interference Pattern

Answer 10

The pattern of alternating constructive and destructive interference resulting from the superposition of waves.

Question 11

Diffraction

Answer 11

The bending of waves around obstacles or through openings, explained by the superposition of wavelets.