Question

find the mew when light travels from water to glass

Answer 1

N, jzosiwpwbwwp swallowing a

Answer 2

speed of light in water=
$2.25 \times 10 ^{8}$
m/sec.
and speed of light in glass =
$2 \times 10 ^{8}$
m/sec.

$gnw = \frac{2.25 \times 10^{8} }{2 \times 10^{8} } \\ gnw = 4.5$