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Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsOptical instrumentsMedium2 minQB

PhysicsMediumsingle choice

A telescope of diameter 2 m uses light of wavelength $5000 \overset{˚}{A}$ for viewing stars. The minimum angular separation between two stars whose image is just resolved by the telescope, is

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Solution:

$b = 2 m, λ = 5000 \overset{˚}{A}$ . $θ = \frac{1.22 λ}{b} = \frac{1.22 \times 5 \times 1 0 ^{- 7}}{2} = 0.31 \times 1 0^{- 6} rad$ .

Stream:JEESubject:PhysicsTopic:Geometrical OpticsSubtopic:Optical instruments

⏱ 2mℹ️ Source: QB

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