What are three common types of optical instruments?

What are three common types of optical instruments?

There are three main types of optical telescopes: refractive, reflective, and catadioptric.

How are concave mirrors used in everyday life?

Concave mirrors are used in reflecting telescopes. They are also used to provide a magnified image of the face for applying make-up or shaving. Concave mirrors are used to form optical cavities, which are important in laser construction. Some dental mirrors use a concave surface to provide a magnified image.

Why ENT doctors use concave mirrors?

The same mirror can also be used as a shaving mirror. A concave mirror converges the rays of light falling on it in a direction parallel to the principal axis, on to its focus. That is why ENT specialists use it as a head mirror.

Which mirror do ENT doctors use?

A head mirror is mostly used for examination of the ear, nose & throat. It comprises a circular concave mirror, with a small hole in the middle, and is attached to a head band.

Which lens is used by ENT doctors?

doctors use concave mirrors because images formed by concave mirrors are larger in size than original object.

Which mirror is used by dentist and ENT specialists?

The head mirror used by the E specialists and dentists is a concave mirror which has a property to converge the rays of light. Therefore, the head mirror focuses light coming from the lamp on the body part (like eyes, ears, nose, and throat etc.) to be examined properly.

Is used by ENT doctors?

The mirror which is used by the ENT specialist (Otolaryngologist) is a concave mirror. Because the concave mirror combines all the rays from the object and focuses the object rays in the desired part of the eye.

Which type of mirror is used in barber shop?

Complete step by step answer: Commonly plane mirrors used to see ourselves so, it is widely used in the barbershop, salon, and beauty parlor. For the purpose of using a plane mirror in shops to give a better view of hair from the front and back to the customers. A plane mirror always forms a virtual image.

Why does a dentist use a curved mirror?

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.

Is dentist mirror real or virtual?

The dentist uses a CONCAVE MIRROR to observe a magnified image of the tooth. As we know, a concave mirror forms a virtual, erect and magnified image…

How do doctors use concave mirror?

If the object is placed between the focus and pole of a concave mirror, it provides a virtual enlarged and erect image. So, the doctors use it as a magnifying tool. The concave mirrors provide a magnified reflection of whatever is being reflected.

What is the difference between concave and convex mirror?

What is the difference between Concave and Convex mirror? Spherical mirrors whose inner side is reflecting are called concave mirrors. Spherical mirrors whose outer side is reflecting are called convex mirrors. It’s focus and centre of curvature lies behind the mirror.

What is the difference between concave mirror and parabolic mirror?

Parabolic mirrors (Figure 1) focus all rays in an incoming, collimated light beam to a diffraction-limited spot. In contrast, concave spherical mirrors (Figure 2) concentrate incoming collimated light into a volume larger than a diffraction-limited spot.

What are the uses of concave and convex mirrors?

Concave mirror is used by dentist, solar furnace, reflector of a torch, etc. Convex mirror is used in rear view mirrors.

What are the two uses of convex lens?

Uses Of Convex Lens

• Magnifying glasses.
• Eyeglasses.
• Cameras.
• Microscopes.

What are examples of convex mirrors?

Torch lights, automobile headlights are examples of concave mirrors. Magnifying glasses, telescopes are examples of convex mirrors.