Question

Calculate the speed of light in the following materials:
(i) ice ( μ = 1.31)
(ii) diamond (μ = 2.42)

Answer 1

${\large{\underbrace{\underline{\bf{Question:-}}}}}$

Calculate the speed of light in the following materials:

(i) ice (μ = 1.31)

(ii) diamond (μ = 2.42)

${\large{\underbrace{\underline{\bf{Answer:-}}}}}$

Speed of light in vacuum is 3 × 10⁸

i) Speed of light in ice = $\frac{Speed \: of \: light \: in \: vacuum}{Refractive \: index \: of \: ice}$

                                    = $\frac{(3)(10⁸)}{1.31}$

                               = 2.29 × 10⁸ m/s

ii) Speed of light in diamond = $\frac{Speed \: of \: light \: in \: vacuum}{Refractive \: index \: of \: diamond}$

                                        = $\frac{(3)(10⁸)}{2.42}$

                                   = 1.24 × 10⁸ m/s

Hope this helps uh! ♡