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= Topic 1 Lenses and Refracting Telescopes = In the exam you are expected to know about: * Principal focus, focal length of converging lens * power = 1/f * Formation of images by a converging lens * Ray diagrams * Lens formula: 1/f = 1/u + 1/v * Astronomical telescope consisting of two converging lenses * Ray diagram to show the image formation in normal adjustment * Angular magnification in normal adjustment * M = angle subtended by image at eyeangle subtended by object at unaided eye * Focal lengths of the lenses * M = fo/fe * *: Refractors were the earliest type of optical telescope. The first practical refracting telescopes appeared in the Netherlands in about 1608, and were credited to three individuals, Hans Lippershey and Zacharias Janssen, spectacle-makers in Middelburg, and Jacob Metius of Alkmaar also known as Jacob Adriaanszoon. Galileo, happening to be in Venice in about the month of May 1609, heard of the invention and constructed a much improved version of his own based on his understanding of the effects of refraction. Galileo then communicated the details of his invention to the public, and presented the instrument itself to the Doge Leonardo Donato, sitting in full council. Galileo may thus claim to have invented the refracting telescope independently, but not until he had heard that others had done so
What else can I help you with?
What type of telescope is the hubble telescope?
The Hubble telescope was a basic reflector telescope with a 94.5 ft mirror. The Hubble collects light though its open end, the primary mirror reflects the light to a secondary mirror that then reflects the light through a hole in the primary mirror to a focal point of the instruments or eyes of the Hubble.
What was the hubble space telescope named after?
The Hubble Space Telescope was named after the American astronomer Edwin Hubble, who played a crucial role in changing our understanding of the universe by demonstrating that galaxies are moving away from each other.
What is the name of the telescope that they use to see galaxies?
the hubble telescope edwin hubble :)
What type of light did the Chandra telescope see?
The Chandra telescope was built to observe X-rays.
How have the chandra and hubble telescopes helped scientists?
The Hubble space telescope uses optical sensors to gather data of distant objects; as it is located outside of the Earths atmosphere it is not subject to the distortions associated with terrestrial telescopes. The Chandra (X-ray observatory) gathers x-ray data about the universe; again, this cannot be achieved with terrestrial based observatory instruments
What telescope took information on Neptune?
The Hubble space Telescope
Is Hubble the only telescope orbiting earth?
No, there's a great number of highly specialized telescopes in orbit. The most famous ones apart from Hubble are the Spitzer Space Telescope (for infrared) and the Chandra (for X-rays).
What are NASA's the best observatories?
There are four: Hubble Space Telescope, Compton Gamma Ray Observatory, Chandra X-ray Observatory, and the Spitzer Space Telescope.
Did Edwin Hubble have anything to do with the Hubble Space Telescope?
No, Edwin Hubble had nothing directly to do with the Hubble Telescope, it was named for him because he profoundly changed the understanding of the nature of the universe. Hubble died before the the physical exploration of space began. Hubble also created his own Hubble telescope back in 1929 but it is not the orbiting Hubble telescope. Go to the NASA website for more information.
What was Edwin Hubble know for?
Telescope, hence the hubble telescope!
What type of telescope is the hubble telescope?
The Hubble telescope was a basic reflector telescope with a 94.5 ft mirror. The Hubble collects light though its open end, the primary mirror reflects the light to a secondary mirror that then reflects the light through a hole in the primary mirror to a focal point of the instruments or eyes of the Hubble.
Who was the hubble telescope named after?
The Hubble Telescope was named after its designer Edwin Hubble.
What is the Comparison between Hubble and Galileo telescope?
what is the comparison between Hubble telescope and Galileo telescope
Why the Hubble telescope is unique?
The Hubble telescope is unique because it was the first space telescope. Also, the Hubble is one of the largest and most versatile.
Who is the telescope after hubble?
Edwin Hubble
What was the hubble space telescope named after?
The Hubble Space Telescope was named after the American astronomer Edwin Hubble, who played a crucial role in changing our understanding of the universe by demonstrating that galaxies are moving away from each other.
What is the name of the telescope that they use to see galaxies?
the hubble telescope edwin hubble :)
