Answer:
1.517
Step-by-step explanation:
Angle of incidence in air, i = 30°
Angle of refraction, r = 19.24°
According to the Snell's law

Where, n be the refractive index of the syrup with respect to water. By substituting the values, we get


n = 1.517
Thus, the refractive index of the syrup is 1.517.