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प्रश्न
A star is emitting light at the wavelength of 5000 Å. Determine the limit of resolution of a telescope having an objective of a diameter of 200 inch.
संख्यात्मक
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उत्तर
Given: λ = 5000 Å = 5 × 10-7 m
D = 200 × 2.54 cm = 5.08 m
θ = `(1.22 lambda)/"D"`
`= (1.22 xx 5 xx 10^-7)/5.08`
= 1.2 × 10-7 rad
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