A metallic sheet has a large number of parallel slits,5.0 mm wide and 20 cm apart.This sheet 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 will occur? (c = 3.00 × 10⁸ m/s) A)0.50 GHz B)0.70 GHz C)1.0 GHz D)1.5 GHz E)2.0 GHz

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The Answer of A metallic sheet has a large number of parallel slits,5.0 mm wide and 20 cm apart.This sheet 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 will occur? (c = 3.00 × 10⁸ m/s) A)0.50 GHz B)0.70 GHz C)1.0 GHz D)1.5 GHz E)2.0 GHz

A Metallic Sheet Has a Large Number of Parallel Slits,5