Isn't that not obvious? The angle of incidence is zero, so will be the angle of refraction.
From a formula standpoint, we know that:
sin i / sin r = n
If i = 0, then sin i = 0.
Whatever be n, , sin r will equal to 0, which means that r will always be 0.
Coming back to the original question, aren't you asked to find delta 1 and delta 4? What is the exact question anyway? Did you do an experiment?
__________________
Jerry (Got my results!) It is easier to protect your feet with slippers than to cover the earth with carpet.
No one can go back and change a bad beginning; but anyone can start now and create a successful ending.
If a problem can be solved, no need to worry about it. If it cannot be solved what is the use of worrying? |