waves formulas

Question 1

refractive index (without critical angle)

Answer 1

n= sin(i)/sin(r)

Question 2

refractive index (with critical angle)

Answer 2

n=1/sin(c)

Question 3

refraction ray

Answer 3

r=sin-1(sin(i)/n)

Question 4

incident ray

Answer 4

i=sin-1(sin(r)

Question 5

wave speed

Answer 5

wave speed = frequency times wavelength

Question 6

frequency

Answer 6

f=1/T