Payal Priya
Birsa Institute of Technology (BIT), Sindri
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11 Other formulas that you can solve using the same Inputs

Length of a compound microscope
Length of the microscope=Distance between two lenses+(Least distance of the distinct vision*Focal length of an eyepiece)/(Least distance of the distinct vision+Focal length of an eyepiece) GO
Magnifying Power of an Astronomical Telescope
Magnifying Power=(1+Focal length of an eyepiece/Least distance of the distinct vision)*Focal length of the objective/Focal length of an eyepiece GO
Magnifying Power of a Terrestrial Telescope
Magnifying Power=(1+Focal length of an eyepiece/Least distance of the distinct vision)*Focal length of the objective/Focal length of an eyepiece GO
Magnifying power of a compound microscope
Magnifying Power=(1+Least distance of the distinct vision/Focal length of an eyepiece)*Distance between two lenses/Object distance GO
Magnifying power of a compound microscope at infinity
Magnifying Power=(Distance between two lenses*Least distance of the distinct vision)/Object distance*Focal length of an eyepiece GO
Magnifying power of a simple microscope
Magnifying Power=1+Least distance of the distinct vision/Focal Length Of A Convex Lens GO
Magnifying power of a simple microscope when image is formed at infinity
Magnifying Power=Least distance of the distinct vision/Focal Length Of A Convex Lens GO
Length of an Astronomical Telescope when Image Forms at Infinity
Length of the telescope=Focal length of the objective+Focal length of an eyepiece GO
Length of a Compound Microscope when the Image forms at Infinity
Length of the microscope=Distance between two lenses+Focal length of an eyepiece GO
Magnifying power of an astronomical telescope when image is formed at infinity
Magnifying Power=Focal length of the objective/Focal length of an eyepiece GO
Magnifying Power of a Terrestrial Telescope when Image Forms at Infinity
Magnifying Power=Focal length of the objective/Focal length of an eyepiece GO

3 Other formulas that calculate the same Output

Length of a terrestrial telescope
Length of the telescope=Focal length of the objective+4*Focal length of the erecting lens+(Least distance of the distinct vision*Focal length of an eyepiece)/(Least distance of the distinct vision+Focal length of an eyepiece) GO
Length of a terrestrial telescope when image is formed at infinity
Length of the telescope=Focal length of the objective+Focal length of an eyepiece+4*Focal length of the erecting lens GO
Length of an Astronomical Telescope when Image Forms at Infinity
Length of the telescope=Focal length of the objective+Focal length of an eyepiece GO

Length of an astronomical telescope Formula

Length of the telescope=Focal length of the objective+(Least distance of the distinct vision*Focal length of an eyepiece)/(Least distance of the distinct vision+Focal length of an eyepiece)
More formulas
Magnifying power of a simple microscope when image is formed at infinity GO
Magnifying power of a simple microscope GO
Magnifying power of a compound microscope at infinity GO
Magnifying power of a compound microscope GO
Length of a Compound Microscope when the Image forms at Infinity GO
Length of a compound microscope GO
Magnifying power of an astronomical telescope when image is formed at infinity GO
Length of an Astronomical Telescope when Image Forms at Infinity GO
Magnifying Power of an Astronomical Telescope GO
Magnifying Power of a Terrestrial Telescope when Image Forms at Infinity GO
Magnifying Power of a Terrestrial Telescope GO
Length of a terrestrial telescope when image is formed at infinity GO
Length of a terrestrial telescope GO
Magnifying Power of a Galilean Telescope when Image forms at Infinity GO

Explain working of an astronomical telescope.

The rays coming from a distant object fall on the objective as a parallel beam at some angle say "a" and these rays after refraction and passing through the objective converge at its focus and make an inverted & real image AB. This image acts as an object for the eyepiece. The distance of the eyepiece is so adjusted that the image AB lies within the focal length of the eyepiece. The eyepiece forms the final image. The final image is magnified, virtual, and inverted with respect to the object. The final image is formed at infinity.

What are the uses of an astronomical telescope ?

Astronomical Telescope, a 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.

How to Calculate Length of an astronomical telescope?

Length of an astronomical telescope calculator uses Length of the telescope=Focal length of the objective+(Least distance of the distinct vision*Focal length of an eyepiece)/(Least distance of the distinct vision+Focal length of an eyepiece) to calculate the Length of the telescope, The length of an astronomical telescope is the distance between the objective lens and the eyepiece. Length of the telescope and is denoted by L symbol.

How to calculate Length of an astronomical telescope using this online calculator? To use this online calculator for Length of an astronomical telescope, enter Least distance of the distinct vision (D), Focal length of an eyepiece (fe) and Focal length of the objective (fo) and hit the calculate button. Here is how the Length of an astronomical telescope calculation can be explained with given input values -> 3.666667 = 0.02+(0.1*0.02)/(0.1+0.02).

FAQ

What is Length of an astronomical telescope?
The length of an astronomical telescope is the distance between the objective lens and the eyepiece and is represented as L=fo+(D*fe)/(D+fe) or Length of the telescope=Focal length of the objective+(Least distance of the distinct vision*Focal length of an eyepiece)/(Least distance of the distinct vision+Focal length of an eyepiece). The least distance of the distinct vision (LDDV) is the closest someone with "normal" vision (20/20 vision) can comfortably look at something, The focal length of an eyepiece is the distance from the principal plane of the eyepiece where parallel rays of light converge to a single point and The focal length of the objective is typically between 2 mm and 40 mm. Magnification and numerical aperture are sufficient for quantifying the essential performance in a microscope.
How to calculate Length of an astronomical telescope?
The length of an astronomical telescope is the distance between the objective lens and the eyepiece is calculated using Length of the telescope=Focal length of the objective+(Least distance of the distinct vision*Focal length of an eyepiece)/(Least distance of the distinct vision+Focal length of an eyepiece). To calculate Length of an astronomical telescope, you need Least distance of the distinct vision (D), Focal length of an eyepiece (fe) and Focal length of the objective (fo). With our tool, you need to enter the respective value for Least distance of the distinct vision, Focal length of an eyepiece and Focal length of the objective and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Length of the telescope?
In this formula, Length of the telescope uses Least distance of the distinct vision, Focal length of an eyepiece and Focal length of the objective. We can use 3 other way(s) to calculate the same, which is/are as follows -
  • Length of the telescope=Focal length of the objective+Focal length of an eyepiece
  • Length of the telescope=Focal length of the objective+Focal length of an eyepiece+4*Focal length of the erecting lens
  • Length of the telescope=Focal length of the objective+4*Focal length of the erecting lens+(Least distance of the distinct vision*Focal length of an eyepiece)/(Least distance of the distinct vision+Focal length of an eyepiece)
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