$refraction and diffraction$

The following two videos cover the wide range of wave behaviour, including reflection, refraction, diffraction and wave superposition. In short, refraction is a light ray or energy wave bends when it passes from one medium to another. Wave superposition occurs when two or more waves are travelling through the same medium at the same time, the net displacement at any point in time, is simply the sum of the individual wave displacements. Diffraction is the bending of waves around obstacles and openings. Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated, while refraction is the change in direction of a wave passing from one medium to another. In this post, we explain the behaviour of waves in a variety of situations by investigating the phenomena of reflection, refraction, diffraction and wave superposition, as a part of the Prelim Physics course under the module Waves and Thermodynamics and sub-part Wave Behaviour. What is reflection, refraction, diffraction and wave superposition? Latent Heat Involved in a Change of State.

$refraction and diffraction$

Relationship between the Change in Temperature of an Object and its Specific Heat Capacity (Q = mc△T).

Relationship Between the Temperature of an Object and Kinetic Energy.

Applying Equations and Relationships to Solve Questions (Refraction Index, Snell's Law, Critical Angle, Intensity of Light).

Relationship Between the Inverse Square Law, the Intensity of Light and the Transfer of Energy.

A screen at a given distance away will show the.

Practical Investigation: Phenomenon of the Dispersion of Light When light travels through a double slit, the waves diffract and start to interfere with each other.

Refraction, Diffraction and Interference.

Refraction and Total Internal Reflection An argument that links spacing to slit width and its effect on diffraction.

Practical Investigation: Formation of Images in Mirrors and Lenses.

Behaviour of Standing Waves on Strings and Pipes.

Reflection, Diffraction, Resonance and Superposition of Sound Waves.

$refraction and diffraction$

Relationship Between Distance and Intensity of Sound.Displacement of Air Molecules as Variations in Pressure.Diffraction is not refraction but it is another wavelike behavior that seems like it should be impossible for particles to do, but they do. Practical Investigation: Pitch and Loudness of a Sound You can see a demonstration of behavior similar to (but not the same as) this, in this video, where a beam of single photons diffracts.Resonance in Mechanical Systems (Driving Frequency, Natural Frequency, Amplitude, Transfer of Energy).

$refraction and diffraction$

Reflection, Refraction, Diffraction and Wave Superposition.Graphs of Displacement as a Function of Time (Transverse and Longitudinal Waves).Practical Investigation: Transverse, Longitudinal, Mechanical and Electromagnetic Waves.Practical Investigation: Creation of Mechanical Waves.

$refraction and diffraction$

Refraction and diffraction