33. Geometric Optics

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?

When white light is refracted by a prism, what phenomenon is primarily observed?

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

What is the critical angle for total internal reflection at the interface between glass with refractive index $n=1.90$ and ice with refractive index $n=1.31$?

According to the principles of refraction, the explanation for refraction must involve a change in which of the following properties as light passes from one medium to another?

When a ray of light passes from air into water at an angle, which of the following describes what happens to the direction of the ray according to $Snell’sLaw$?

When a light wave passes from one medium to another and undergoes refraction, how does its speed change in relation to the refractive indices of the two media ($n$)?

Under which condition is the angle at which a ray of light enters a glass block different from the angle at which it exits the block (relative to the normal)?

Under which condition does the refraction of light occur as it passes from one medium to another?

When a straw is partially submerged in water, why does it appear bent at the water's surface?

When a ray of green light passes from air into a slab of ice, what happens to the light as it enters the ice?