MCQOPTIONS
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| 1. |
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 × 10-7 rad |
| B. | 2.0 × 10-7rad |
| C. | 3.0 × 10-7 rad |
| D. | 4.5 × 10-7 rad |
| Answer» D. 4.5 × 10-7 rad | |