33. Geometric Optics

Lenses such as those in microscopes and telescopes depend on which property of light to focus images?

When light travels from crown glass (refractive index $n=1.52$) into air (refractive index $n=1.00$), what is the critical angle for total internal reflection at the interface?

Which best describes what happens when light traveling through air enters water at an angle?

What is the critical angle for light traveling from crown glass with refractive index $n=1.52$ into water with refractive index $n=1.33$?

When a beam of light passes from air into a glass of water, what happens to its speed?

Why does light refract when it passes from air into glass in a lens?

Why does white light separate into different colors when it passes through a prism?

When white light passes through a prism, which color bends the most due to refraction?

When a light ray passes from a medium with a lower index of refraction $n$ into a medium with a higher index of refraction $n$, what happens to the direction of the light ray relative to the normal?

When a ray of light bends as it enters a new medium at an angle, what is this phenomenon called?

When a ray of light passes from $\mathrm{water}$ into $\mathrm{air}$ at an angle, how does the angle of refraction in $\mathrm{air}$ compare to the angle of incidence in $\mathrm{water}$?

When a light ray passes from one medium into another and its speed changes, what happens to the direction of the light ray according to $Snel’sLaw$?

How does a prism separate visible light into its different colors?

A laser beam passes from medium $1$ into medium $2$ and bends toward the normal. Which statement is true about the indices of refraction of the two media?

Which of the following objects does not separate white light into the colors of the visible spectrum?