Question

A 6.50 cm tall object is placed at a distance of 20.20 cm from a convex mirror. The distance from the mirror to its focal point is 10.40 cm. Find the magnification of the image formed by the mirror. Give your answer with 3 significant figures and make sure to include the correct sign.

Answer #1

The answer is in the images. Page number is mentioned at right top.

A 4.50 cm tall object is placed in front a convex mirror with a
focal length of -12.25 cm. If the magnification is 1/8, what is the
distance from the object to the mirror? Give your answer in
centimeters (cm) and with 3 significant figures.

A 28 cm tall object is placed in front of a concave mirror with
a radius of 37 cm. The distance of the object to the mirror is 94
cm.
Calculate the focal length of the mirror.
Calculate the image distance.
Calculate the magnification of the image (Remember, a negative
magnification corresponds to an inverted image).
Calculate the magnitude of the image height.

A.
A 4.22 cm tall object is placed 6.80 cm in front of a convex
mirror with focal length -2.65 cm.
How big does the image appear?
(include minus sign if inverted)
B.
A beam of light strikes a surface at 22 degrees from vertical.
The beam proceeds through the new material at 49 degrees from
vertical.
If the index of the original material is 1.50, what is the index
of the new material?

An object 2.75 cm high is placed 19.7 cm from a convex mirror
with a focal length of 7.80 cm.
(a) Find the position of the image.
cm
(b) Find the magnification of the mirror.
(c) Find the height of the image.
cm
Suppose the object is moved so it is 3.90 cm from the same
mirror. Repeat parts (a) through (c).
(a) q = cm
(b) M =
(c) h' = cm

A 31 cm tall object is placed in front of a concave mirror with
a radius of 32 cm. The distance of the object to the mirror is 88
cm.
Calculate the focal length of the mirror.
Tries 0/20
Calculate the image distance.
Tries 0/20
Calculate the magnification of the image (Remember, a negative
magnification corresponds to an inverted image).
Tries 0/20
Calculate the magnitude of the image height.

An object is placed 10-cm from a convex mirror. An image 0.5
times the size of the object is formed. What is the focal length of
the mirror?
–10 cm
+10 cm
None of the choices is correct.
+5 cm
–5 cm

A 3 cm. "tall" object is placed 25 cm. from a convex lens with a
focal length of 50 cm. Determine at what distance a focused image
will appear. Determine the height of this image. Create a sketch
(ray diagram) showing the scenario described above labeled as “A”
and a scenario where everything is the same except the focal length
of the lens is changed to 12.5 cm.

An object 0.440 cm tall is placed 18.5 cm to the left of the
vertex of a convex spherical mirror having a radius of curvature of
22.5 cm.
A. Calculate the position of the image.
B. Calculate the size of the image. (Express your answer in
centimeters to three significant figures)
C. Find the orientation (upright or inverted) and the nature
(real or virtual) of the image.

1. The image behind a convex mirror (radius of curvature = 98.0
cm) is located 41.0 cm from the mirror. (a) Where
is the object located (give the distance to the mirror) and
(b) what is the magnification of the mirror?
2. A concave mirror ( f = 50 cm) produces an image
whose distance from the mirror is one-third the object distance.
Determine (a) the object distance and
(b) the (positive) image distance.
3. A convex mirror has a...

A convex mirror has a focal length of 3 cm. An object is placed
2 cm away from the mirror. The darkest lines on the grid represent
1 cm.
(a) Draw the ray diagram and locate the image. Label the
location of the focal point F, and the center of curvature.
(b) Indicate the positive direction on the optical axis. Mark
important locations on the optical axis, s, s’, f, r, and 0
(c) Indicate the magnification.

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