A telescope is used to resolve two stars separated by `4.6xx10^(-6)` rad. If the wavelength of light used is `5460 Å` , what should be the aperture of the objective of the telescope ?A. 0.1488 mB. 0.567 mC. 1 mD. 2 m

A telescope is used to resolve two stars separated by `4.6xx10^(-6)` r

1.	A telescope is used to resolve two stars separated by `4.6xx10^(-6)` rad. If the wavelength of light used is `5460 Å` , what should be the aperture of the objective of the telescope ?A. 0.1488 mB. 0.567 mC. 1 mD. 2 m
Answer» Correct Answer - A Aperture of the telescope, `D=(1.22lambda)/(d theta)` Here, `lambda=5460Ã…=5460xx10^(-10)m, d theta=4.6xx10^(-6)`rad, ` :. D=(1.22 xx 5460xx10^(-10))/(4.6xx10^(-6))=0.1488` m

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A telescope is used to resolve two stars separated by `4.6xx10^(-6)` rad. If the wavelength of light used is `5460 Å` , what should be the aperture of the objective of the telescope ?A. 0.1488 mB. 0.567 mC. 1 mD. 2 m

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