Question

the speed of light in the tansperante medium is 2.6 m/s calculate absulate refractive index of the medium​

Answer 1

Answer:

Explanation:

absolute refractive index=speed of light in medium/speed of light in air or vacuum.

=(2.4×10^8)/(3×10^8)

=0.8

Answer 2

Correct question :

The speed of light in the transparent medium is 2.6 × 10⁸ m/s calculate absolute refractive index of the medium​ .

Given :

• Speed of light in transparent medium = 2.6 × 10⁸ m/s

To find :

• Absolute refractive index of the medium

Solution :

Absolute refractive index is given by,

$\longmapsto\boxed{\boxed{\mathfrak{Absolute \ refractive \ index , n = \dfrac{Speed \ of \ light \ in \ medium(c)}{Speed \ of \ light \ in \ air (v)} }}}$

We know,

• Speed of light in air, v = 3 × 10⁸ m/s

Substituting values,

$\longrightarrow\sf Absolute \ refractive \ index, n = \dfrac{2.6 \times 10^8}{3 \times 10^8} \\\\ \\ \longrightarrow\sf Absolute \ refractive \ index, n = \dfrac{2.6}{3} \\\\ \\ \longrightarrow\underline{\underline{\bold{Absolute \ refractive \ index, n = 0.87 }}}$

$\therefore\underline{\textsf{Absolute refractive index of transparent medium = {\textbf{0.87 }}}}$