Chapter 10.3

Question 1

Concave mirror

Answer 1

Mirror that curves inward

Question 2

Principal axis

Answer 2

The line that passes through the centre of curvature of the mirror and is normal to the centre of the mirror

Question 3

Centre of curvature

Answer 3

Where all the normals meet

Question 4

Where is the centre of curvature placed relative to the focal point?

Answer 4

Twice as far from the mirror as the focal point is

Question 5

Focal length

Answer 5

The distance between the focal point and the mirror along the principal axis

Question 6

Image distance

Answer 6

The distance between the image and the mirror

Question 7

Magnification

Answer 7

Change in size of an optically produced image

Question 8

What is the equation of magnification?

Answer 8

m = hi/ho = -di/do

Question 9

Spherical aberration

Answer 9

Irregularities in an image in a curved mirror that result when reflected rays from the outer parts of the mirror do not go through the focal point

Question 10

How are concave surfaces used in radar technology?