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Diameter of the objective lens of a tele...

Diameter of the objective lens of a telescope is 250 cm. for light of wavelength 600 nm. Coming from a distance object, the limit of resolution of the telescope is close to :

Text Solution

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`theta=(1.22lamda)/d=(1.22xx600xx10^(-9))/(250xx10^(-2))`
`=3.0xx10^(-7)` rad
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