Physics, 09.04.2020 03:51 gabev420

A telescope is used to resolve two distant stars. Bu what factor will the resolution of the telescope change if the diameter of the lens is doubled?

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Answer from: veaseyjermarius1234

resolution of the telescope is halved

Explanation:

Solution:-

- The lens' circular aperture is analogous to a two-dimensional version of the single-slit experiment. Light passing through the lens interferes with itself creating a ring-shape diffraction pattern, known as the Airy pattern, if the wavefront of the transmitted light is taken to be spherical or plane over the exit aperture.

- The narrower the aperture of a lens the more likely the PSF is dominated by diffraction. In that case, the angular resolution of an optical system can be estimated (from the diameter of the aperture and the wavelength of the light) by the Rayleigh criterion:

Δl = 1.22*(f*λ) / D

Where,

Δl : Spatial resolution

f : Focal length of the lens

λ : Wavelength of light

D : diameter of the lens

- We know that diameter of the lens is doubled; using the given relationship we see that Δl : Spatial resolution is inversely proportional to diameter D of the lens. So, the resolution of the telescope is halved.

Answer from: Quest

Did you ever figue this

Answer from: Quest

stands for electromotive force and it is measured in volts. despite its name, it is not actually the force in the sense of being a "pushing" or "pulling" (not measured in newtons).an equation that relates emf, ℰ, to a battery's terminal voltage, v, current, i, and internal resistance, r, is ℰ = v + irin this case, the emf can be interpreted as a voltage—a difference in electric potential.i would not say that it would be considered an energy. if emf can be defined as the energy/work per a unit charge from a battery or other electric source, then it is not strictly energy.

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A telescope is used to resolve two distant stars. Bu what factor will the resolution of the telescop...

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