33. Geometric Optics

The effect of refraction at a flat interface is to cause a $\mathrm{wavefront}$ to:

A light ray enters a glass prism from air at an angle. Which of the following best describes the possible path of the ray as it passes through the prism according to $Snell’sLaw$?

When light travels from air into water at an angle, which of the following correctly describes the change in its direction according to $Snel’sLaw$?

When light passes at an angle to the normal from a medium with a higher refractive index $n>n$₂ to a medium with a lower refractive index $n$₂<n, which of the following occurs?

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?

A beam of light has a wavelength of 650 nm in vacuum. What is the wavelength of these waves in the liquid?