Question

the speed of light in 3 into 10 power 8 m s power -1. calculate the speed of light in class dot please stop the refractive index of Glass is 1.5​

Answer 1

$\green{\underline{\frak{hello}}}$

$\red{\mathfrak{here \: is \: the \: solution}}$

◆Given

$\tt{speed \: of \: light \: in \: vacuum = 3 \times {10}^{8} m{s}^{ - 1} }$

$\tt{refractive \: index \: of \: glass = 1.5}$

◆To find

$\tt {\: speed \: of \: light \: in \: glass}$

◆Solution

$\tt \: R. I. \: of \: medium = \frac{speed \: of \: light \: in \: air}{speed \: of \: light \: in \: medium}$

$\tt \: so$

$\tt \: 1.5 = \frac{3 \times {10}^{8} }{speed \: of \: light \: in \: glass} \\ \\ \tt \: speed \: of \: light \: in \: glass = \frac{3 \times {10}^{8} }{1.5} \\ \\ \tt \: speed \: of \: light \: in \: glass = 2 \times {10}^{8} m {s}^{ - 1}$

$\tt{\blue{\boxed{speed \: of \: light \: in \: glass = 2 \times {10}^{8 }m {s}^{ - 1} }}}$