JEE PHYSICS MCQ: WAVE OPTICS

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Diameter of the objective lens of a telescope is 250 cm. For light of wavelength 600 nm coming from a distant object, the limit of resolution of the telescope is close to

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Correct option: A

3.0 \times {10^{ - 7}}\mathrm{rad}

Option A (

3.0 \times {10^{ - 7}}\mathrm{rad}

) is correct because it is calculated using the formula for the limit of resolution of a telescope:

\theta_R = \frac{{1.22\lambda}}{D}

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