An object is sitting in front of a convex mirror that has a curvature radius of 70cm. The image shows at a distance of 20cm behind the mirror and has a height of 3cm. What is the height of the object?

A convex lens has a focal length of 16 cm. A candle with a height of 6 cm is 15 cm away from the lens. Find the location of the image. If the image is real give a positive answer and a virtual image should be a negative answer.

A technician places a 2.50 cm high crystal 2.50 cm in front of a concave mirror. This results in a 5.50 cm high virtual image of the crystal appearing as if behind the mirror. What is the mirror's focal length (in cm)?

A mirror has f = −1.50 m. A real object is 0.850 m away from the mirror. Where is the image?   can you please also include a picture to help me better understand? thank you

A convex mirror is on the exterior of the passenger side of many trucks . If the focal length of such a mirror is -40.0 cm , a) what will be the location of the image of a car that is 2.0 m high and 100 m behind the truck mirror? di @ 100m = ____ m b) what will be the height of the image of a car that is 2.0 m high and 100 m behind the truck mirror? hi @ 100m = ____ m