optics problems: Lens' Law
A flashlight on the bottom of a 4.25 m deep swimming pool sends a ray upward and at an angle so that the ray strikes the surface of the water 2.50 m from the point directly above the flashlight. What angle (in air) does the emerging ray make with the water's surface?
and
A submarine is 308 m horizontally out from the shore and 110 m beneath the surface of the water. A laser beam is sent from the sub so that it strikes the surface of the water at a point 228 m from the shore. If the beam just strikes the top of a building standing directly at the water's edge, find the height of the building.
They are really the same problem, I can't plug in a value greater than one for the sin1 when using Lens' law. I'm not sure how to proceed with either one when I get there. Thank you.
