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A reflecting telescope is used to observe two distant point sources that are 3.00 m apart...

A reflecting telescope is used to observe two distant point sources that are 3.00 m apart with light of wavelength 600 nm. The telescope's mirror has a radius of 4.0 cm . What is the maximum distance in meters at which the two sources may be distinguished? Express your answer in meters to two significant figures.

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Answer #1

here lemda = 600 nm R = 4cm D = 2R = 8 cm f = 3 m

as we know that

the maximum distance at which the two sources may be distinguished

Q = 1.22 lemda f / D

= 1.22 x 600 x 10-9 x 3 / 0.08

= 0.00002745 m Ans

Simplified Refracting Telescope objective (lens) focus (image) eyepiece (lens) incoming light from object eye objective focalFigure 2. Light Path in Reflecting Telescope yepiece Paraboli Mirror Secondary Mirror Path of lightSimplified Refracting Telescope objective (lens) focus (image) eyepiece (lens) incoming light from object eye objective focal

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