Question

When a ray of light travels from medium A to medium B it's speed increases from 2×10

Answer 1

Answer:

so medium one is a denser medium and medium 2 is vaccum I think

Allah Ho Akbar

Answer 2

Maybe this is the question you are looking for

When a ray of light travels from medium A to medium B it's speed increases from

$2× {10}^{8}$

m/s to

$2.4 \times {10}^{8}$

m/s. What is the sine of the critical angle for the two media?

The sine of the critical angle for the 2 media is

$\frac{5}{6}$

Let's assume the rays from medium A to B

$\frac{ v_{a} }{ v_{b} }$

$\frac{2 \times {10}^{8} }{2.4 \times {10}^{8} }$

$= \frac{5}{6}$

And hence it is

$\frac{5}{6}$