Physics Light Question?

[kaiipoo_]

yo guys, hope you're all doing well today

I can't interpret the questions on my prac properly, or rather, I can't understand it with crystal clarity.

Prac was on Verification of Snells Law.

What does this question mean? - When the incidence is normal, what is the size of the angle of incidence?

i think its 90 degrees but ._.'

does it mean, when the angle hits the surface from the normal? omg.

thanks guys

[polar]

if the angle of incidence is at the normal, then it is 0 degrees from the normal, therefore, the angle of refraction is also 0 degrees from the normal