Question

please answer this question. plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz p​

Answer 1

Answer:

By snells law

$\frac{n_{B} }{n_{A} } = \frac{sin \ i }{sin\ r} \\\frac{n_{B} }{n_{A} }=\frac{sin \ 60}{sin\ 45} \\\frac{n_{B} }{n_{A} }=\frac{\frac{\sqrt[]{3} }{2} }{\frac{1}{\sqrt[]{2} } } \\=\frac{\sqrt{3} }{\sqrt{2} }$