Questions
A telescope is used to resolve two stars separated by 4.6 × 10–6 rad. If the wavelength of light used is 5460Å, then the aperture of the objective of telescope should be
detailed solution
Correct option is A
θ=1.22λD ∴D=1.22λθ=1.22×5460×10−104.6×10−6=0.145mTalk to our academic expert!
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