physics

an object is placed 10 cm from a concave spherical mirror whose radius of curvature is 12 cm. What is the distance of image

a) 5cm
b) 10 cm
c)15cm
d)20cm
e)24cm

1. 👍
2. 👎
3. 👁
1. The focal length is f = R/2 = 6 cm.
1/do + 1/di = 1/10 + 1/di = 1/6
1/di = 1/6 - 1/10 = 5/30 -3/30
= 1/15
image distance di = 15 cm
object distance do = 10 cm

1. 👍
2. 👎

Similar Questions

1. physics

A 4.5 cm tall object is placed 20 cm in front of a spherical mirror. It is desired to produce a virtual image that is upright and 3.5 cm tall. (a) What type of mirror should be used? concave mirror convex mirror (b) Where is the

2. Physics 30

An object located in front of a concave mirror with a radius of curvature of 80 cm produces an invert image that is three times the size of the object. Calculate the distance between the object and the mirror.

3. science

a concave mirror has a radius of curvature of 0.4 m find the position and the size of the image of an object 0.2 m high placed 0.8 m infront of the mirror

4. Physics

An object 0.600 cm tall is placed 16.5 cm to the left of the vertex of a concave mirror having a radius of curvature of 22.0 cm. (a) Draw a principle-ray diagram showing the formation of the image. (b) Calculate the position,

1. physics

TRUE OR FALSE The virtual image formed by a convex mirror is always enlarged. A convex mirror never forms a real image of a real object. When the object of a concave mirror is inside the focal point, the image is virtual. The

2. 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?

3. physics

a concave shaving mirror is construction so that a man at a distance of 20cm from the mirror sees his image magnified 1.5 times what is the radius of curvature of the mirror?

4. physics

A concave spherical mirror has a radius of curvature 15 cm. A 1 cm tall bulb is placed in front of the mirror such that its image is formed 10 cm in front of the mirror. If you measure distance from the optic center of the mirror,

1. Physics

A spherical mirror is polished on both sides. When the concave side is used as a mirror, the magnification is +3.2. What is the magnification when the convex side is used as a mirror, the object remaining the same distance from

2. Physics

The distance between a 10 cm tall candle and the reflecting surface of a concave mirror is 40 cm. The radius of curvature of the mirror is 25 cm. Now, A. What is the focal length of the mirror? B. What is the image distance? C.

3. physics

the focal length of this mirror is 6 cm and the object is located 8 cm away from the mirror. calculate the position of the image formed by the mirror. suppose the converging mirror is replaced by a diverging mirror with the same

4. Physics

A concave spherical mirror has a radius of curvature of 18 cm. Locate the images for object distances as given below. In each case, state whether the image is real or virtual and upright or inverted, and find the magnification.