Q28. 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:
(a) 1.5 x 10-7 rad
(b) 2 x 10-7 rad
(c) 3 x 10-7 rad
(d) 4.5 x 10-7 rad

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Accepted Answer

3 x 10-7 rad

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Q28. 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: (a) 1.5 x 10-7 rad (b) 2 x 10-7 rad (c) 3 x 10-7 rad (d) 4.5 x 10-7 rad

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