Which of the following best describes the image formed by a concave mirror when the object is located somewhere between the focal point and the center of curvature?

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Applying the mirror formula, i.e.
Magnification factor = |v/u| = image height/object height
=|13.33/20| <1
2 & 7. C. real, inverted, and reduced
3. B. The image is virtual.
4. B. X = centre of curvature, Y = vertex, Z = focal length
The PRINCIPAL AXIS is X.
Y is the CURVATURE'S RADIUS.
The focus is on Z.
5 & 6. C. They can concentrate the Sun's rays to produce intense heat at a spot.

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Catherine H.

Physics 101 Mechanics

8 months, 3 weeks ago

ProfessorQueSeraSera ProfessorQueSeraSera

Assume a convex mirror's focal length (f) is 40 cm.
the object's distance from the mirror's pole (u) is equal to 20 cm

Given that the object's distance from the mirror is smaller than the focal length's absolute value.

Let v be the distance between the picture and the mirror's pole.

Applying the mirror formula, i.e.

, we obtain,

[Using the correct sign for the values]

The image is therefore upright and virtual (as the plus sign is obtained) (by the ray diagram we can get it)

Magnification factor = |v/u| = image height/object height

=|13.33/20| <1

The height of the image divided by the object height equals one.

Meaning, the height of the image < the height of the object. The image is therefore reduced.

2 & 7. C. real, inverted, and reduced

In accordance with the inquiry, the object is positioned on the main axis beyond the concave mirror's center of curvature.
The diagram shows that the mirror's focus is where paraxial light rays from the object after reflection travel.
A second ray that was traveling through the center of the curve is now retracing its steps after being reflected.
Between the mirror's focus and center of curvature, these rays collide to create an actual image.

These are the image characteristics:

Realistic image
Image is upside-down
Image quality suffers
F and C combine to create an image.

3. B. The image is virtual.

The magnification is larger than one, virtual, and erect are the proper answers. A concave mirror's vertex is another name for the mirror's center. A virtual and upright picture is created when anything is placed between the focus and the mirror's center.