What type of mirror do dentists usually use to clearly see the images or our teeth? why?

Concave mirror is a type of mirror that is used by dentists to clearly see images of our teeth because they form an erect and enlarged image of the teeth.

Further Explanation Concave mirrors Concave mirrors are types of mirrors that curve inward at the optical center. They reflect light inward towards one focal point. They are used for various purposes depending on the type of image required and the position of the object from the mirror.Uses of Concave mirrors Shaving and makeup mirrors  When used for shaving and makeups the objects are placed close to concave mirror to form an upright magnified image. Concave mirror are held close to the face so as to form an enlarged and upright image of the face. Additionally, during shaving hair can be seen clearly to make sure all hairs has been cut to the same length. Headlights Concave mirrors may be used in motor vehicles headlights. These mirror focuses the light from the bulb instead of reflecting it, to create a strong beam which shines on the road. Microscopes Concave mirrors may be used in microscopes to collect light from its source and shine it towards the slide that contains the specimen to enhance viewing through magnifying lens. Dentists Concave mirrors are used by dentists so as to enlarge the image of the teeth. The mirror is placed closer to the tooth, resulting to the formation of an upright and enlarged image of the tooth.

Keywords: Concave mirrors, upright and enlarged image  

Learn more about: Curved mirrors: Concave mirror: Uses of concave mirrors:

Level: High school  

Subject: Physics  

Topic: Curved mirrors  

Sub-topic: Concave mirrors  

The dentists make use of the Concave Mirrors to obtain the clear and magnified image of the teeth.

Further Explanation:

The dentists need to obtain the clean and magnified image of the teeth while operating or examining the teeth. The mirror is held by the dentist very close to the teeth so that the image could be as clear as possible.

Since the mirror is placed very close, the object for the mirror i.e. the teeth lies at the distance almost less than that of the focal length of the mirror. Now the mirror held by the dentist should be such that it forms the magnified and erect image of the object placed between the focus and the pole of the mirror used by the dentist.

Image Formation:

The erect and magnified image for the object placed at the distance less than the focal length of mirror is only formed by the concave mirror. A concave mirror forms a virtual, magnified and erect image of the teeth so that the dentist can have a clear look at the teeth.

The ray diagram for the image formation of the teeth by the dentist’s concave mirror is attached below:

Examples:

The concave mirror is used in several other applications where it is used to disperse the light incident on it and form a magnified image.

•  The concave mirrors are used in the headlights of the vehicles in order to reflect the light and form a strong beam of light by focusing the light after reflection.

•  The concave mirrors are used as the mirrors to form the large magnified images of the object to view them clearly. For ex: the shaving mirror, a dentist’s mirror etc.

Thus, the dentist uses a concave mirror in order to obtain the clean and magnified image of the teeth.

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3. The motion of a body under friction

Answer Details:

Grade: High School

Subject: Physics

Chapter: Spherical Mirrors

Keywords:

Dentist, mirror, image, teeth, magnified, clear, concave mirror, reflect, focus, erect, close, pole, virtual image, focal length, image formation.

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