Formulas Flashcards
1
Q
mirror / lens equation
A
1/f = 1/d1 + 1/do
2
Q
when is the focal length in a mirror equation negative?
A
convex mirror (diverging) - focal point is behind the mirror
3
Q
when is the focal length in a lens equation negative?
A
concave lens (diverging)
4
Q
magnification formula
A
m = hi/ho = -di/do
5
Q
radius of curvature
A
R = 2f (focal length)
6
Q
index of refraction
A
n = c/v
7
Q
the speed of light
A
v = c/n
8
Q
what does c equal
A
3.00 x 10^8 m/s
9
Q
how to answer for the speed of light
A
m/s
10
Q
if the angle between the incident and reflected rays is 46 degrees, what is the angle of incidence?
A
46/2 = 23 degrees
