Question

If the critical angle and a certain liquid is 46.30°. Calculate the
refraction index.

Answer 1

Explanation:

When a ray of light passes from denser medium to rarer medium, it bends away from the normal. As the angle of incidence is increased, the angle of refraction also increases. If the angle of incidence is continuously increased, the angle of refraction finally becomes 90 degree and the refracted ray does not enter the rarer the rarer medium at all but takes the path along the surface of separation of two media. This angle of incidence is called critical angle

Answer 2

Answer:

the refractive index of that liquid is  1.38

Explanation:

n = 1 /sinФc = 1 /sin46.30° = 1/0.7229 = 1.38