Question

The angle of incidence on the surface ofglass of RI * sqrt(2) , so that the angle of refraction is30 is2) 30 degrees 3) 45 degrees 4) 90 degrees 1) 60 degrees​

Answer 1

Answer:

45 degree

Explanation:

Apply Snell's law of refraction

μ= $\frac{sin i}{sin r}$

and put all the values