Wave Motion 

How wave motion relates to light optics?

How do we know light contains multiple colors?

Why light (electromagnetic wave) from Sun contains many spectrum?

Wave and Ray Constructions and Reconstruction Interferences?

The colorful fringes from oil films

Please explain in detail how 2 light sources such as flash lights are `interference`.

Diffraction

What really diffraction are defined differently from reflection? Because they seems similar in several perspective.

Rays vs Wavefront

How ray and wavefront are related?

Which one real?

Refraction of Light

When a wave moves into a slower medium the wavefronts get compressed. For the wavefronts to stay connected at the boundary the wave must change direction.

slow (water)

fast (air)

Refraction of light at the interface between two media of different refractive indices, with n2 > n1. Since the phase velocity is lower in the second medium (v2 < v1), the angle of refraction θ2 is less than the angle of incidence θ1; that is, the ray in the higher-index medium is closer to the normal.

Snell's law

What are the main distinguishes that scientists define reflection from refraction?

Refraction Critical Angle

Answer the question: Which light phenomena are observable if the observer is on the surface?

A) reflection

B) refraction

C) refraction with a critical angle

Why do underwater objects appear to be closer than they are?

Answer the question:

Why human eyes see through water and see actual object in the water is deeper its true location?

What kind of this light phenomenon?

A) reflection

B) refraction

C) refraction with critical angle

Scattering and Diffraction

What are the major differences between scattering and diffraction in sea wave phenomenon?

How do Prisms Bend Light, and What is Dispersion?

The main scientific definitions that distinguish scatting/diffraction from dispersion?