N = sin i / sin r
sin i -- incident ray angle
sin r -- refracted ray angle
n -- refractive index
so the answer is 1.49 (3s.f.)
*Refractive Index cannot go below 1
55 N moves it 8m is the correct answer, because if you multiply 55 time 8 you get 440 and that is the greatest number.
Answer:Thermal energy to electric energy to light energy
Answer:
F= M×G is the formula of force
It is round or say spherical to widen the range of photography and it is designed to focus the image as the ray are coming from infinity so !!
I am not an expert of camera but ya it is the main theme !!