Question

a ray of light in incident on glass slab at angle of 45 if refractive index of glass be 1.6 what is the angle of refraction​

Answer 1

sin(I)/sin(r)=1.6

sin(I) =45

sin(r)=?

sin45/sin(r) =1.6

sin(r)=0.7/1.6

=0.44

r=sin^-1(0.44) (sin inverse)

r=26 degree