- Download the worksheet to save time writing
- Start solving the practice problems
- If you're stuck, watch the video solutions
- See your summary to get more insights

You hold a 5 cm tall bolt in front of a mirror. You observe a upright image located behind the mirror that is 2.5 cm tall in length. The distance between the image and object is 90 cm. Determine what the mirror's focal length will be.
A dressing room contains two nearly parallel mirrors separated by a distance of 4.0 m. A person stands 1.5 m from the front of the mirror to view their reflection. Their back side reflects from the other mirror behind them so they can view it in the mirror located in front of them. Therefore, they are able first to see their front side and then their backside reflection. Ideally, the parallel mirrors will produce one image only. Nevertheless, we can still model these particular mirrors to be parallel for the case of this problem. Determine the distance between the person and their backside image.
A person doing their daily facial routine applying products on their face would like to view a reflection of their face that is magnified by 1.6 when their face is located 2.0 cm away from the mirror. Specify if the mirror used is convex or concave and determine what the mirror's focal length will be.
A scale model car is placed 15.0 cm to the left of the center of a reflective sphere. The radius of the sphere is 8.0 cm. i) Determine where the car image is located. ii) Calculate the magnification factor, m.
A very small round object is placed 3.0 cm away from a concave dentist's mirror with a radius of curvature of 9.0 cm. Find the image distance from the mirror vertex. Is that image virtual?
A student would like to get a virtual image three times larger than the size of a penny. The student placed the penny 5 cm away from a concave mirror with a focal length of f. What should be the focal length, and the radius of curvature of the mirror in order to satisfy the student requirements?