# Physics

A mirror on the passenger side of your car is convex and has a radius of curvature with magnitude 18 cm. (a)Another car is seen in this side mirror and is 13 m behind the mirror, if the car is 1.5 m tall, what is the height of its image?

I can't figure this one out! help please!

1. 👍 0
2. 👎 0
3. 👁 252
1. The focal length of the convex mirror is -R/2 = -9 cm

(a) 1/do + 1/di = 1/f = -1/9
1/1300 + 1/di = -1/9
1/di = -0.11111- 0.00078 = -0.11189
di = -8.954 cm (behind the mirror)

Image height = (Object height)x (magnification)
= 1.5 m*(di/do) = 0.0103 m = 1.03 cm

1. 👍 0
2. 👎 0
posted by drwls

## Similar Questions

1. ### Physics

The outside mirror on the passenger side of a car is convex and has a focal length of -7.2 cm. Relative to this mirror, a truck traveling in the rear has an object distance of 20 m. Find (a) the image distance and (b) the

asked by Kristi on November 17, 2011
2. ### science gr.8

classify each as plane mirror, convex, or concave and briefly explain how the mirror is used to see images. 1) full length bedroom mirror 2) make-up mirror (compact makeup mirror) 3) car rear view mirror 4) dental mirror (used to

asked by anonymous on December 8, 2013
3. ### engineering science

The spherical side mirror on a car is convex and has a radius of curvature of 25 cm. Another car is following, 20 m behind the mirror. If the height of the car is 1.6 m, how tall is its image?

asked by lindiwe on April 16, 2012
4. ### Physics

A candle is placed 17.0 cm in front of a convex mirror. When the convex mirror is replaced with a plane mirror, the image moves 6.0 cm farther away from the mirror. Find the focal length of the convex mirror. _______cm

asked by Mary on October 18, 2007
5. ### Physics

Ed(height of 2.3 m) is 30 m away from the passenger side of a car. The radius of curvature of the mirror is -4m. How far from the mirror is the image? Is the image virtual or real? How tall is the image

asked by Con on April 2, 2012
6. ### Physics

Ed(height of 2.3 m) is 30 m away from the passenger side of a car. The radius of curvature of the mirror is -4m. How far from the mirror is the image? Is the image virtual or real? How tall is the image?

asked by Con on April 1, 2012
7. ### Physics

In separate experiments, an object is placed 12.0 cm in front of two different mirrors: a flat mirror and a convex mirror. The image formed by the convex mirror is 4.0 cm closer to the mirror than the image formed by the plane

asked by Amy on April 30, 2018
8. ### physics

A convex mirror of radius of curvature 1.64 m is placed 0.277 m from a chess piece which is on the reflecting side of the mirror. What is the position of the image? What is the magnification?

asked by Anonymous on December 5, 2013
9. ### physics

A convex mirror of radius of curvature 1.64 m is placed 0.277 m from a chess piece which is on the reflecting side of the mirror. What is the position of the image? What is the magnification?

asked by Anonymous on December 5, 2013
10. ### physics

A spherical mirror is polished on both sides. When the concave side is used as a mirror, the magnification is +1.2. What is the magnification when the convex side is used as a mirror, the object remaining the same distance from

asked by Andy on November 6, 2014

More Similar Questions