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Physics - Wave Optics Question with Solution | TestHub

PhysicsWave OpticsDiffractionEasy2 minPYQ_2020

PhysicsEasysingle choice

A telescope of objective lens diameter $2 m$ uses light of wavelength $5000 Å$ for viewing stars. The minimum angular separation between two stars whose image is just resolved by the telescope is

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Answer:

Solution:

Minimum angular separation between two stars whose image is just resolved by telescope is

$Δθ = \frac{1 .22 λ}{a}$

$∴ Δθ = \frac{1 .22 \times 5000 \times 10^{- 10}}{2}$

$Δθ = 3050 \times 10^{- 10} = 3 .05 \times 10^{- 7} rad$

$Δθ \approx 0 .31 \times 10^{- 6} rad$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Wave OpticsSubtopic:Diffraction

⏱ 2mℹ️ Source: PYQ_2020

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