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प्रश्न
A telescope has an objective of diameter 2.5 m. What is its angular resolution when observed at 7500 Å?
संख्यात्मक
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उत्तर
Data: λ = 7500 Å = 7.5 × 10−7 m, D = 2.5 m
Angular limit of resolution,
θ = `(1.22 lambda)/D`
= `(1.22 xx 7.5 xx 10^-7)/2.5`
= 1.22 × 3 × 10−7
= 3.66 × 10−7rad
Thus, the angular resolution is 3.66 × 10−7rad.
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