Which of the following expressions correctly relates the refractive index of a medium…

PHYSICS · Single correct · AP · Physics 2: Algebra-based · Geometric Optics · Geometric Optics

Problem

Which of the following expressions correctly relates the refractive index

n

of a medium to the speed of light

v

in that medium and the speed of light in vacuum

c

? (a)

n=\sqrt{\dfrac{c}{v}}

(b)

n=\dfrac{v}{c}

(c)

n=\dfrac{c}{v}

(d)

n=\left(\dfrac{c}{v}\right)^2