33. Geometric Optics

Refraction is the ______ of light as it passes from one medium to another with a different refractive index $n$.

When a light ray passes from one medium into another and its speed changes, which phenomenon primarily occurs?

A ray of light is incident from air onto a block of transparent solid with index of refraction $n$. If the angle of incidence in air is ${\theta }_i$, what is the expression for the angle of refraction ${\theta }_r$ inside the solid according to Snell's Law?

When white light passes through a prism, which color bends the least due to $\mathrm{refraction}$?

Why do objects appear blurry to a swimmer under water, but become sharp when goggles are worn?

When you see a straw in a glass of water, it appears bent at the surface of the water. What is the primary reason for this phenomenon?

Which of the following best describes the function of a prism in the context of refraction of light?

You are standing in air and looking at a flat piece of glass. If a light ray passes from air into the glass at an angle, which of the following correctly describes how the light ray will bend according to $Snell’sLaw$?

As light travels from air into the water through an oil film, which of the following statements about the path of the light is correct?

When a ray of light passes from $\mathrm{air}$ into $\mathrm{water}$, which of the following occurs?

Why does a rainbow appear as a curve when viewed from the ground?

When light travels from glass into air at an angle, which of the following correctly describes the direction of the refracted ray relative to the $\mathrm{normal}$?

When white light strikes a prism, which of the following best explains what happens to the light as it passes through the prism?

When white light passes through a glass prism, which color is refracted the most due to its wavelength ($\lambda$)?

When a ray of light is reflected off a mirror and then enters a glass of water from air, what happens to its direction as it passes from air into water?