Homework Statement
A beam of light, wavelength 625 nm in air, is incident on a block of flint glass at an angle of 31.5.
Find:
A) the speed of light in the flint glass
Homework Equations
Don't know where to start
The Attempt at a Solution
refractive index of 1.61
625 / w = 1.61...
A flat mirror that is 0.85m tall is attached to a wall so that its upper edge is 1.7m above the floor. Use the law of reflection and a ray diagram to determine if this mirror will show a person who is 1.7m tall his or her complete reflection.
Please help me as I do not know what to do. So...