3.4: Convex (Diverging Mirrors)

Question 1

Convex (diverging) Mirrors

Answer 1

• mirror curves outwards
• reflected rays spread apart, appear to come from focal point behind mirror

Question 2

Rules to Locate Convex images

Answer 2

1. incident ray parallel to p-axis = reflect as if came from focal point behind mirror
2. incident ray that travels toward focal point = reflected parallel to p-axis
3. incident ray that travels toward C = reflected along same path

Question 3

Where is F and C located in Convex Mirrors?

Answer 3

Focal point (F) and centre of curvature (C) are on opposite sides of where the object is placed (behind mirror)

Question 4

Images in Convex Mirrors

Answer 4

Always same characteristics

S: Smaller than object
A: Upright
L: Closer to mirror than object; behind the mirror
T: Virtual

Question 5

Functions of Convex Mirrors

Answer 5

Ex. Car mirrors, security mirrors

• objects are closer than they appear
• image smaller, looks farther
• allows you to see larger area than you can with a plane mirror