Refractive astronomical telescope, Physics

Assignment Help:

Refractive Astronomical Telescope:

It is an optical instrument which is used to see heavenly bodies such as stars, moon and planets is known as telescope.

Astronomical telescope having of a long metallic tube of variable length, two converging lens are mounted at its two ends.

Convex lens of large focal length and big aperture is known as objective.

Convex lens of shorter focal length and large aperture is known as eye piece.

Working:

The objective forms a real and inverted image of the object. This image is very small as compared to the object. The eye piece is used as magnifying glass. The final image is inverted and brighter than the object.

 

 


Related Discussions:- Refractive astronomical telescope

Lenz’s law , LENZ’S LAW   A change of flux in a closed circuit indu...

LENZ’S LAW   A change of flux in a closed circuit induces an emf and sets up a current.  The direction of this current is such that its magnetic field tends to oppose the c

Geometry, define hyperbola please

define hyperbola please

What do you mean by normal adjustment of a telescope, What do you mean by n...

What do you mean by normal adjustment of a telescope? In What way it is better? What is the need of erecting lens in a terrestrial telescope? What do you mean by its magnific

Gray, Gray; Gy (after L.H. Gray, 1905-1965): The derived SI unit of ab...

Gray; Gy (after L.H. Gray, 1905-1965): The derived SI unit of absorbed dose, described as the absorbed dose wherein the energy per unit mass imparted to the matter through ion

Calculate the magnetic field due to a circular current loop, As regards cas...

As regards cases involving the application of the Biot-Savart Law to calculate the magnetic field due to an electric current which of the following statements about why it is relat

Fringes, What is the definition of fringes

What is the definition of fringes

By which transformer cores are laminated, Transformer cores are laminated w...

Transformer cores are laminated with (A) Low carbon steel. (B) Silicon sheet steel. (C) Nickel Alloy steel. (D) Chromium sheet steel. Ans: Transformer co

Conservation of energy, CONSERVATION OF ENERGY 1.   Potential energy ...

CONSERVATION OF ENERGY 1.   Potential energy is, as the word suggests, the energy "locked up" up somewhere and which can perform work. Potential energy Potential energy can b

Principles of radiation therapy, Principles of radiation therapy: The ...

Principles of radiation therapy: The basic principle of radiation therapy is to maximize damage to the tumor while minimizing damage to the normal tissue.Factors that determin

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd