The only condition under which a concave mirror forms a virtual and upright image is
when an object is placed between the center of curvature and the focal point on the principal axis
.
Which is the only condition under which a concave mirror forms a virtual and upright image on the principle axis?
Plane mirrors and convex mirrors only produce virtual images. Only a concave mirror is capable of producing a real image and this only occurs if
the object is located a distance greater than a focal length from the mirror's surface
. 10. The image of an object is found to be upright and reduced in size.
Under which of the following conditions is a concave mirror?
Complete answer:
In a concave mirror,
the image is real so the magnification is negative
and we know that the magnification when the image is larger than the object is m=−vu and also, the mirror formula, 1v+1u=1f.
Under what condition a concave mirror forms an image?
Concave mirrors form both real and virtual images. When the concave mirror is
placed very close to the object
, a virtual and magnified image is obtained and if we increase the distance between the object and the mirror, the size of the image reduces and real images are formed.
Why is a convex mirror used to look under a vehicle during a security check?
Why is a convex mirror used to look under a vehicle during a security check?
It provides a wider field of view and the images formed are virtual but smaller and upright.
What are the 6 cases of a concave mirror?
- Object at infinity.
- Object between infinity and centre of curvature (C)
- Object at centre of curvature (C)
- Object between centre of curvature (C) and Principal focus (F)
- Object at Principal Focus (F)
Can we see real image in concave mirror?
A real image occurs where rays converge, whereas a virtual image occurs where rays only appear to diverge. Real images can be produced by concave mirrors and converging lenses, only
if the object is placed further away from the mirror/lens than the focal point
, and this real image is inverted.
What is the nature of a convex mirror?
Characteristics of Convex Mirrors
A convex mirror is also known as a diverging mirror as this mirror diverges light when they strike on its reflecting surface.
Virtual, erect, and diminished images
are always formed with convex mirrors, irrespective of the distance between the object and the mirror.
Why are reflections called virtual images?
Notice that the reflected rays appear to the observer to come directly from the image behind the mirror. … The image behind the mirror is called a virtual image
because it cannot be projected onto a screen
—the rays only appear to originate from a common point behind the mirror.
What is the magnification produced by a concave lens?
When an object is kept in front of a concave mirror, it produces an upright, virtual and reduced in size image which is on the side of the object. As the image produced is reduced in size, hence the magnification produced is
less than 1
as image height is less than the object height. Hence, Option A is correct.
What are the applications of concave mirror?
- Shaving mirrors.
- Head mirrors.
- Ophthalmoscope.
- Astronomical telescopes.
- Headlights.
- Solar furnaces.
What is the focal length of concave mirror?
Focal Length –
The distance between the pole P of the concave mirror and the focus F
is the focal length of the concave mirror. Thus, the focal length of a concave mirror can be estimated by obtaining a ‘Real image' of a distant object at its focus, as shown in the figure.
Where are concave mirrors used?
Concave mirrors are used in
headlights and torches
. The shaving mirrors are also concave in nature since these mirrors can produce enlarged clear images. Doctors use concave mirrors as head mirrors to have a clearer view of eyes, noses, and ears. The dental mirrors used by dentists are also concave.
What are the 5 uses of convex mirror?
Light Energy | Short/Long Answer Questions
Two uses of convex mirror are: (i) It is used as a rear view mirror in vehicles. (ii) It is used as a vigilance mirror. (iii)
it is used as a reflector in street lamps
.
Which mirror is used in street light?
Hence, comparing all the given options, it can be concluded option B is correct; a street light bulb uses the
convex mirror
as reflectors. Note: Reflectors light bulbs are generally used in the heavy light application, in floodlights and in spotlights. Reflectors are used because they can spread light in a large area.
Where is convex lens used?
Convex lenses are used in
microscopes, magnifying glasses and eyeglasses
. They are also used in the cameras to create real images of objects present at a distance. The nature of the images depends on the way these lenses are used.
