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Physics, 05.07.2019 21:20 sadiyah1116
Ametallic sheet has a large number of slits, 5.0 mm wide and 20 cm apart, and is used as a diffraction grating for microwaves. a wide parallel beam of microwaves is incident normally on the sheet. what is the smallest microwave frequency for which only the central maximum occurs? (c = 3.00 × 108 m/s)
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