Wave Behavior and Interference Concepts

This video tutorial explores various wave behaviors, including reflection, refraction, diffraction, and interference. It explains how waves interact with boundaries, change speed and direction, and how they can bend around obstacles. The tutorial also covers how waves can combine to create constructive or destructive interference, with practical examples like noise-cancelling headphones.

What are the four types of wave behaviors discussed in the lesson?

• Reflection, Refraction, Diffraction, Interference

• Reflection, Refraction, Absorption, Transmission

• Diffraction, Interference, Absorption, Transmission

• Reflection, Absorption, Diffraction, Transmission

What happens to a wave when it hits a fixed boundary?

• It passes through unchanged

• It inverts and reflects back

• It is transmitted

• It is absorbed

How does an open boundary affect a wave's reflection?

• The wave reflects back without inverting

• The wave is absorbed

• The wave is transmitted

• The wave inverts and reflects back

What causes refraction of a wave?

• Change in wave speed

• Change in wave frequency

• Change in wave direction

• Change in wave amplitude

When does refraction not occur?

• When the wave is absorbed

• When the wave changes speed

• When the wave moves at the same speed in both media

• When the wave hits at an angle

What is diffraction?

• Bending of waves due to a change in media

• Bending of waves around obstacles and openings

• Reflection of waves at a boundary

• Interference of waves in the same space

How do waves behave when they pass through a small opening?

• They reflect back

• They get absorbed

• They expand and bend

• They remain unchanged

What is constructive interference?

• When waves cancel each other out

• When waves combine to form a larger wave

• When waves pass through each other unchanged

• When waves reflect off each other

What is the principle behind noise-cancelling headphones?

• Reflection of sound waves

• Absorption of sound waves

• Destructive interference of sound waves

• Transmission of sound waves

What happens during destructive interference?

• Waves pass through each other unchanged

• Waves reflect off each other

• Waves cancel each other out

• Waves combine to form a larger wave