cse • paper_1 • waves_oscillationscse-1996-subject-02-006
Diffraction — UPSC CSE 1996 Physics PYQ
Buy PYQ Solution Manual →The angular separation between two distant stars is 1 arc-second. If the effective wavelength of light is 5500 Å; what should be the diameter of the objective of a telescope so that the stars are just resolved?
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