Multiple Choice
A metallic sheet has a large number of parallel slits,5.0 mm wide and 20 cm apart.This sheet is used as a grating for microwaves.A wide parallel beam of microwaves is incident normally on the sheet.If the microwave wavelength is 6.0 cm,what is the largest angle from the normal,at which an intensity maximum occurs?
A) 64°
B) 69°
C) 74°
D) 79°
E) 84°
Correct Answer:
Verified
Correct Answer:
Verified
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