Question

b) Study the time-distance graph given below for a car to travel to certain places and
answer the following questions:
A Time-Distance Graph
100
F
90
80
G
70
60
D
E
С
Distance (km)
50
40
B
30
20
A
10
0
1
2
5
6
7
3
4
Time (hours)
(i) Calculate the average speed of the car in km/h.
(ii) Between which points is the speed of the car, the greatest?​

Answer 1

Answer:

Snell's law asserts that n1/n2 = sin α2/sin α1. Overview of optics and light refraction. Because the ratio n1/n2 is a constant for any given wavelength of light, the ratio of the two sines is also a constant for any angle.