Question

6. A ray of light is incident at an angle of 35° on the surface of refractive index 1.35.
Calculate the angle of refraction ​

Answer 1

Answer:25.1

Explanation:

Angle of incidence=i=35°

Refractive index=n=1.35

Angle of refraction=r

n=(sini)/(sinr)

1.35=(sin35)/(sinr)

Cross multiply

1.35 x sinr =sin35. Sin35=0.5736

1.35 x sinr=0.5736

1.35sinr=0.5736

Divide both sides by 1.35

(1.35sinr)/1.35=0.5736/1.35

sinr =0.4249

r=sin(inverse)(0.4249)

r=25.1

Angle of refraction =25.1°