Why dentist use concave mirror?Asked by: Kirsten Cook | Last update: 18 June 2021
Score: 4.4/5 (49 votes)
A concave mirror gives the dentist a magnified reflection of the mouth while also refracting a bit of light. This means the image in the mirror is larger, brighter, and, for the dentist, easier to see. Another plus of using a concave mirror is that the image in the mirror isn't inverted.View full answer
Besides, Why are concave mirrors and not convex mirror used by dentists?
Option (c) Concave mirrors are used by dentists because they are converging mirrors and reflect light to the focal point. While convex mirrors make things appear smaller, concave ones magnify the images. The surface of concave mirror is bent inward and outward.
One may also ask, Do doctors use concave mirrors?. This is because a concave mirror converges the rays of light on the part to be examined by the doctor. ...
Likewise, people ask, Is convex mirror used by dentist?
Answer. Concave mirrors on the other hand converge or focus the incident light at some point. While convex mirrors make things appear smaller, concave ones magnify the images. ... These mirrors enable the dentists to see the minute details of the tooth in a magnified form.
What is a mirror used for in dentistry?
Mouth mirrors are in the dental armamentarium with a range of uses from reflecting light to retraction of tissues. Areas of the mouth that are difficult to light need a mouth mirror to reflect light onto the surfaces. Mirrors help prevent injury during tongue and cheek retraction.
A concave mirror gives the dentist a magnified reflection of the mouth while also refracting a bit of light. This means the image in the mirror is larger, brighter, and, for the dentist, easier to see.
So dentists always use concave lenses. The concave mirrors are also known as converging mirrors because they tend to collect lights that fall on them, refocusing parallel incoming rays toward a focus.
Note: A plane mirror can be used in a solar cooker but it cannot concentrate the rays at point as the concave mirror does. Thus, the maximum heat will not be achieved. A convex cannot be at all since it will diverge away the sun rays falling on it.
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.
Concave mirrors are used as searchlights, shaving mirrors, satellite dishes, and many more. These mirrors have the property to collimate and concentrate light rays. Concave mirrors in torches and headlights are used as reflectors.
Convex mirrors are widely used as rear-view mirrors in automobiles and vehicles because it can diverge light beams and make virtual images.
Convex mirrors are used as side view mirrors as they have a wider field of view. Convex mirrors form virtual, erect and diminished images of the object placed in front of it. All these characteristics of a convex mirror are ideal for a side view mirror.
Dentists use concave mirror to see enlarged image of the teeth for examining it.
A concave lens is a lens that possesses at least one surface that curves inwards. ... It is a diverging lens, meaning that it spreads out light rays that have been refracted through it. A concave lens is thinner at its centre than at its edges, and is used to correct short-sightedness (myopia).
The magnification m is given by m=−vu. According to sign conventions, for a concave mirror, the focal length (f) is negative, the object distance (u) is negative, the image distance (v) is positive for a virtual image and negative for a real image.
Solar cooker is a device which uses sunlight as a source of energy instead of gas and electricity to cook food. ... To achieve this, plane mirrors are used to concentrate the sunlight. Sufficient amounts can be concentrated by reflecting sunlight on a plane mirror.
A concave mirror is used in solar cooker because it converges light rays coming from infinity to a point so that more heat is produced at the point sufficient to cook the food.
As the heat from the sun goes inside the solar cooker, this heat needs to be trapped inside the cooker so that the temperature may remain enough to heat the food, so to trap this heat so that it does not escape back out from the cooker; a glass plate is kept which keeps the heat inside the cooker for a long time.So the ...