Question text
21 Light passes from air into a block of glass, as shown. w x z y glass Which expression is equal to the refractive index of glass? sinw sin w siny sinz A B C D siny sin z sinw sinx
21 Light passes from air into a block of glass, as shown.
w
x
z
y
glass
Which expression is equal to the refractive index of glass?
sinw sin w siny sinz
A B C D
siny sin z sinw sinx
Select your answer: