Wave Interference and Phase Difference Quiz

What occurs during constructive interference?

• Wave displacements are subtracted
• Wave displacements are added
• Waves cancel each other out
• Waves become stationary

When are two waves considered to be in phase?

• They have different frequencies
• Their phase difference is an odd multiple of 180°
• Their phase difference is an integer multiple of 360°
• They have different wavelengths

What is the relationship between path difference and phase difference?

• Δφ = 2π × Δx/λ
• Δφ = λ × Δx/2π
• Δφ = Δx/λ
• Δφ = π × Δx/λ

In a stationary wave, where do antinodes form?

• Regions of no displacement
• Regions of maximum displacement
• Points of reflection
• Wave intersections

What condition is necessary for waves to create destructive interference?

• Waves have different amplitudes
• Waves are completely out of phase
• Waves have different frequencies
• Waves travel in the same direction

If two waves have a path difference of 6m and a wavelength of 2m, what is their phase difference?

• 3π
• 6π
• π
• 2π

What happens to energy transfer in a stationary wave?

• Energy increases
• Energy decreases
• No energy is transferred
• Energy oscillates

What is required for waves to be coherent?

• Same amplitude
• Same frequency and wavelength
• Same phase
• Same direction

In a stationary wave, nodes represent:

• Maximum displacement
• Minimum displacement
• Zero displacement
• Wave reflection points

What occurs when two waves with the same frequency and wavelength interfere?

• Random interference
• Energy dissipation
• Stationary wave formation
• Wave cancellation