A telescope that uses a mirror 249 cm in diameter is just able to resolve a double-star system that is 1.5 light-years away. Assume the light from the stars has a wavelength of 691 nm. How far apart are the two stars? One light year = 9.46 × 10¹⁵ m. (Use the approximation for θ_min: θ_min ≈ .) A)9.8 × 10⁷ m B)8.5 × 10⁸ m C)8.5 × 10⁹ m D)9.8 × 10⁸ m E)4.8 × 10⁹ m

Question

Quizplus · Accepted Answer

The Answer of A telescope that uses a mirror 249 cm in diameter is just able to resolve a double-star system that is 1.5 light-years away. Assume the light from the stars has a wavelength of 691 nm. How far apart are the two stars? One light year = 9.46 × 10¹⁵ m. (Use the approximation for θ_min: θ_min ≈ .) A)9.8 × 10⁷ m B)8.5 × 10⁸ m C)8.5 × 10⁹ m D)9.8 × 10⁸ m E)4.8 × 10⁹ m

A Telescope That Uses a Mirror 249 Cm in Diameter