A person's face is 30 cm in front of a concave shaving mirror. If the image is an erect image 1.5 times as large as the object, what is the mirror's focal length?
A)20 cm
B)30 cm
C)50 cm
D)70 cm
E)90 cm

Question

Quizplus · Accepted Answer

The Answer of A person's face is 30 cm in front of a concave shaving mirror. If the image is an erect image 1.5 times as large as the object, what is the mirror's focal length?
A)20 cm
B)30 cm
C)50 cm
D)70 cm
E)90 cm

A Person's Face Is 30 Cm in Front of a Concave