Explain the first law of reflection in your own words.

Diamonds are cut to take advantage of internal reflections of light. The angles of a diamond are cut so that all of the light that enters it reflects out the top. The light or brilliance that emerges from the top of a diamond is one of the qualities that determines its monetary value. (a) Compute the critical angle for light traveling from a diamond to air. (b) Would diamond jewelers want to create angles smaller or larger than the critical angle? ( c) Zircon is an inexpensive substitute for diamond. Zircon's index of refraction is $1.92$. Compute its critical angle. (d) If a zircon has the same cut as a diamond, which will have a greater brilliance by internally reflecting more light to the top of the stone?

What makes diffusion different from standard reflection?

If the angle of incidence of light passing from air to a liquid is $38.0^{\circ}$. The angle of refraction is $24.5^{\circ}$. What is the index of refraction of the liquid?

With $s_i=-10.0 \mathrm{~cm}$ and $f=-5.00 \mathrm{~cm}$, find $s_o$.

Consider a body is $3.75 \mathrm{~m}$ tall and $7.35 \mathrm{~m}$ from a large mirror with an image formed $4.35 \mathrm{~m}$ from the mirror, what is the height of the image?

A fish tank made of crown glass is full of fresh water. (a) Compute the angle of refraction when the light travels from the air and enters the crown glass at an incident angle of $30.0^{\circ}$ . (b) Compute the angle of refraction when the light leaves the crown glass and enters the water. ( c) If the aquarium is full of saltwater, will the angle of refraction be greater or less than the angle of refraction for fresh water?

Characterestics of real image can be: (a) erect. (b) shown on a screen. (c) formed by a plane mirror. (d) none of the above.

With $s_i=14.5 \mathrm{~cm}$ and $f=10.0 \mathrm{~cm}$, find $s_o$.

Consider that the index of refraction of a liquid is $1.50$, find the speed of light in that liquid.

With the help of : $M=\frac{h_i}{h_o}=\frac{-s_i}{s_o}, h_o=6.50 \mathrm{~cm}, s_i=7.50 \mathrm{~cm}$, and $s_o=14.0 \mathrm{~cm}$, find $h_i$.

When does a diverging lens provide a virtual picture that is smaller than the object?

In what circumstances does a converging lens create an actual picture that is the same size as the object?

What circumstances will a convergent lens create a virtual image under?