Answer to Question #291818 in Optics for hannah

Question

Trisha who is 1.7 m tall stands in front of a plane mirror at a distance of 2 m. What is her magnification? Write your answer in whole number.

Answer 1

• Recall properties of a plane mirror

1. Image height is the same as object height
2. Image distance is the same as the object distance

• Also recall magnification formula is image height/object height
• Since these two are the same, the magnification for a plane mirror is always 1.