What are the different optical instrument?
3: Optical Instruments
- 3.1: The Driving Mirror.
- 3.2: The Magnifying Glass.
- 3.3: Spectacle Lenses.
- 3.4: The Camera.
- 3.5: The Telescope.
- 3.6: The Microscope.
How many types of optical instruments are there?
There are three main types of optical telescopes: refractive, reflective, and catadioptric. Refractive telescopes, such as the one invented by Galileo, use an objective lens and an eyepiece.
What are three optical instruments?
Three optical instruments are cameras, microscopes and telescopes.
Why do we use the different optical instruments?
Optical instruments are the devices which process light wave to enhance an image for a more clear view. The use of optical instruments, such as a magnifying lens or any complicated device like a microscope or telescope, usually makes things bigger and helps us to see in a more detailed manner.
Is a telescope an optical instrument?
A telescope is an optical instrument using lenses, curved mirrors, or a combination of both to observe distant objects, or various devices used to observe distant objects by their emission, absorption, or reflection of electromagnetic radiation.
What are uses of telescope?
telescope, device used to form magnified images of distant objects. The telescope is undoubtedly the most important investigative tool in astronomy. It provides a means of collecting and analyzing radiation from celestial objects, even those in the far reaches of the universe.
Which lens is used in telescope?
convex lens
The telescope must have one convex lens as one of the two lenses since the convex lens is used to magnify the objects by bending the path of light.
What are optical instruments Class 12?
Optical instruments are instruments using reflecting and refracting properties of mirrors, lenses and prisms. A number of optical devices and instruments have been designed utilising reflecting and refracting properties of mirrors, lenses and prisms.
Is eyeglass an optical instrument?
The optic mechanism represented by the human eye is also used as the operating principle of simple optical instruments. Microscopes, magnifying glasses, binoculars and telescopes are based on this simple principle.
Which lens is used in binoculars?
convex lenses
Prism. Prism binoculars use convex lenses for both objective and eyepiece lenses and, incorporates an erecting prism that enables an inverted image to appear upright. There are two types of prisms with different shapes: roof prism and porro prism.
What are the uses of binoculars?
Binoculars are versatile tools that provide enlarged images of distant objects, used in a variety of settings, such as hiking, wildlife viewing, birding, hunting, stargazing, golf, sports events, and theater. Note that binoculars are made of two telescopes mounted on a single frame that allow the use of both eyes.
Which lens is used in camera?
In a photographic camera, a convex lens of larger focal length is used.
What is the use of optical instruments?
Optical instruments are the devices which process light wave to enhance an image for a more clear view. The use of optical instruments, such as a magnifying lens or any complicated device like a microscope or telescope, usually makes things bigger and helps us to see in a more detailed manner.
What type of optical instrument is a compound microscope?
A compound microscope uses two lenses, one as the objective and the other as the eyepiece. Camera another type of optical instrument. The objective is a converging lens. Light from a distant object is refracted through the objective lens and when the film is “exposed” the light for the short span, the image is etched onto it.
What are some useful devices that use more than one lens?
Many useful devices, such as microscopes and telescopes, use more than one lens to form images. To analyze any system with more than one lens, work in steps. Each lens takes an object and creates an image.
How do optical instruments make things appear bigger?
The use of optical instruments, such as a magnifying lens or any complicated device like a microscope or telescope, usually makes things bigger and helps us to see in a more detailed manner. The use of converging lenses makes things appear larger, and on the other hand, diverging lenses always get you smaller images.