Question

1. A 3.50 mm object is placed 13.0 cm in front of a lens that has a focal length of -6.50 cm, a second lens is 25.0 cm from the first and has a focal length of 9.00 cm. What is the final height of the image formed, is it virtual or real?

2. Assuming the lenses of a person's eyeglasses are 2.10 cm from their eyes, what power of lens must be used to correct the vision of a nearsighted person whose far point is 1.70 m?

3. A goldfish bowl is spherical. A goldfish is swimming 8.50 cm from the wall of the bowl. It appears to be at a distance of 7.50 cm, what is the radius of curvature of the bowl? The index of refraction of water is 1.33.

4. A man's face is 50.0 cm in front of a concave spherical shaving mirror. If the image is upright and 1.25 times as large as his face, what is the focal length of the mirror?

Answer #2

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answered by: anonymous

A man's face is 51.0 cm in front of a concave spherical shaving
mirror. If the image is upright and the mirror has a radius of
curvature of 3.75 m, what is the magnification of his image?

Problem 1. This problem has 4 parts.
An object 3 cm high is placed 40 cm in
front of a concave spherical mirror with radius of curvature of 60
centimeters and an image of the object is observed.
part a Make a drawing of the system
part b Explain how you would calculate the focal
length and the position of the image.
part c Calculate the height of the image.
part d Indicate if the image is real or virtual and if it...

object of height 25.0 cm is placed 50.0 cm in front of
a spherical mirror of focal length 35.0 cm. The image is formed on
the opposite side of the mirror. (2 points each)
a) Is the image real or virtual, and why?
b) Is the mirror concave or convex, and why?
c) Is the image upright or inverted, and why?
d) What is the image distance?
e) What is the image height?

When an object is placed 200 cm in front of a certain spherical
mirror, its image forms x cm in front of the mirror. If the object
is moved 80 cm closer to the mirror, its image is now x + 10 cm in
front of the mirror. Calculate the value of x, the focal length f
of the mirror, its radius of curvature R, and state whether the
mirror is convex or concave.?

12.
An object 4.0 cmcm high is placed 17 cmcm in front of a convex
mirror whose focal length is -10 cm . What is the image
distance?
4.1 cmcm
-16 cmcm
-6.3 cmcm
-17 cmcm
24 cmcm
14. An object that is located at the center of curvature of a
spherical concave mirror produces which type of image?
A real, inverted image
A real, upright image
A virtual, inverted image
A virtual, upright image
There is no image for...

An object is placed 50 cm in front of a converging lens having a
focal length of magnitude 30 cm. A double-concave lens that has
equal radii of curvature of 13 cm and an index of refraction 1.64
is placed 40 cm past the first lens.
a) what are the nature and the lateral magnification of the
image?
b) where is the image formed?

An object is placed in front of a converging lens (convex lens)
with a radius of curvature of 4.88 cm and focal length of 2.44 cm.
An image is formed the object. (a) Calculate how far is the lens
from the object if the image is real. (b) How far is image from the
lens? (c) is the image upright or inverted, and is the image
magnified or diminished? (d) Draw the ray diagram to confirm your
result prediction.

An object is 15.4 cm in front of a thin converging lens that has
a focal length equal to 10.0 cm. A concave mirror that has a radius
equal to 10.0 cm is 23.8 cm in back of the lens.
(a) Find the position of the final image formed by the
mirror-lens combination.
cm from the lens, on the same side as the original object.

An object is 15.4 cm in front of a thin converging lens that has
a focal length equal to 10.0 cm. A concave mirror that has a radius
equal to 10.0 cm is 26.2 cm in back of the lens.
(a) Find the position of the final image formed by the
mirror-lens combination.
cm from the lens, on the same side as the original object.
Please solve the Q

A) An object is placed 26 cm in front of a converging lens of
focal length 5 cm. Another converging lens of focal length 10 cm is
placed 20 cm behind the first lens.
1) Find the position of the final image with respect to the second
lens. ____cm
2) Find the magnification of the final image. _____
B) A diverging lens of focal length −12cm projects the image of
an object onto a wall. What is the object distance if...

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