The Two Stars in a Binary Star System Have an Angular

question 34

Multiple Choice

The two stars in a binary star system have an angular separation of $1.0 \times 10 ^ { - 5 } \mathrm { rad }$ . If the wavelength of the light from the system is $500 \mathrm {~nm}$ , what is the smallest diameter aperture telescope that could just resolve this system to show that it contains two stars?

• A) \(6.1 \mathrm {~cm}\)
• B) \(5.0 \mathrm {~cm}\)
• C) \(0.61 \mathrm {~cm}\)
• D) \(0.50 \mathrm {~cm}\)

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