Question 1
A concave mirror has a focal length of 20 cm. What is the position (in cm) of the resulting image if the image is inverted and four times smaller than the object?
◦
15
◦
25
◦
50
◦
100
◦
−15
Question 2
A concave mirror has a focal length of 20 cm. What is the position (in cm) of the object if the image is upright and is two times larger than the object?
◦
30
◦
20
◦
10
◦
40
◦
60