MIRRORS ON THE WALL
It is the distance from the vertex of the mirror to the focal point.
focal length (f)
Describe the image is located exactly at the focus of a concave mirror.
No image
What does f represent in the mirror equation?
focal length
It is the point at which rays or waves meet after reflection.
Focal point (F)
What is the LOST of an image of an object in front of a convex mirror?
L=behind the mirror
O=upright
S=smaller
T= virtual
What does di and do represent in the mirror equation?
image distance and object distance
How far is the center of a concave mirror with a focal length of 10 cm?
20 cm
Describe an image of an object placed at the center of a concave mirror.
L= in front of mirror
O=inverted
S=same size
T=virtual
Write the mirror equation
1/f=1/di+1/do
If the center of curvature of a mirror is 40 cm and the object is placed exactly between the focus and the center (C), how far is the object from the mirror?
30 cm
What is the LOST of the image placed between the center and focus of a concave mirror?
L=in front of mirror
O=inverted
Size= bigger than object
Type=real
An object is 10 cm tall. If the mirror has a magnification of 3, how tall is the image?
10 x 3= 30 cm tall
This property of a concave lens determines how far the focal point is from the mirror.
Curvature
A mirror is placed exactly between the focal point and the mirror. What is its exact distance from the mirror if the mirror has center of curvature is 44 cm?
11 cm
An image is found at the back of mirror, upright, bigger and a virtual image. Where is the object placed in front of concave mirror?
between focus (F) and mirror
A concave mirror has a focal length of 10 cm. A stick is placed 20 cm away from the mirror. What is the image distance?
1/di=1/f-1/do
1/di=1/10-1/20
1/di=0.1-0.05
di=1/0.05
di=20 cm