14.1-Reflection of Light, Paper 2 (Section A)

Question 1

a)Two mirrors, A and B, are inclined at an angle of 60 degree to each other.
Light strikes mirror A at an angle of 30 degree, as shown in fig 4.1, (14.1) pg 1 (Theory A)
i) Determine the angle of incidence at mirror A
ii) Determine the angle of incidence at mirror B
iii) Describe the path of the reflected ray after it leaves mirror B

b) A plane mirror hanging on a wall is used to form the image of an object
State 3 characteristics of the image formed

Answer 1

i) 60 degree
ii) 0 degree
iii) (reflect) back along the initial path
b) Any three of:
- same size, same distance, upright, virtual, laterally inverted