# Physics

posted by .

1)A 5.0 cm real object is placed at a distance of 5.0 cm from a concave mirror of focal length 10 cm. Find the size of the image.

di= -10
magnification = |di/do|
magnification = |-10/5.0|
magnification = 2

image size = (object size)*(magnification)
image size = (5.0)*(2)
image size = 10 cm (all of that is from the equation drwls gave me)

2)A rod of length 5.0 cm lies along the axis of a concave mirror of radius of curvature 20 cm. The end of the rod closer to the mirror is 15 cm from the mirror. Find the length of the image of the rod.

20/2
10 cm

## Similar Questions

1. ### Physics repost

1)A 5.0 cm real object is placed at a distance of 5.0 cm from a concave mirror of focal length 10 cm. Find the size of the image. di= -10 magnification = |di/do| magnification = |-10/5.0| magnification = 2 image size = (object size)*(magnification) …
2. ### physics

An object with a height of 42 cm is placed 1.6 m in front of a concave mirror with a focal length of 0.45 m. Find the location and magnification of the image produced by the mirror, using the mirror and magnification equations.
3. ### 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, …
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, …
5. ### Physics

An object is placed 30mm in front of a lens. An image of the object is located 90mm behind the lens. a) Is the lens converging or diverging?
6. ### physics

An object 5cm is placed 30cm in front of a concave mirror.The image is 60cm in front of the mirror.Find (a) the focal length of the mirror.(b) the magnification.(c)the size of the image
7. ### 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. (If …
8. ### physics

A convex mirror of focal length 30cm.produces a real and inverted image of magnification 0.5. By how much distance the object should be brought closer to obtain a virtual and erect image of magnification 2?
9. ### physics

A convex mirror of focal length 30cm. produces a real and inverted image of magnification 0.5.by how much distance the object should be brought closer to obtain a virtual and erect image of magnification 2?
10. ### SCIENCE

a 2cm high object is placed at a distance of 20cm from concave mirror ,the real image is formed at 40cm from the mirror.calculate the focal length,size of image and magnification?

More Similar Questions