Question

how to find refractive index of glass slab when vacuum is not given but medium is 2×10power8 m/s​

Answer 1

• Work out the sine of angle i. sin 55 = 0.819.
• Work out the sine of angle r. sin 33 = 0.545.
• Divide sin i by sin r. refractive index = sin i ÷ sin r. refractive index = 0.819 ÷ 0.545 = 1.50.

Answer 2

Answer:

1. 0.819

hope it helps

pls--follow--me