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LMixer5sosCR7Fan
05.07.2019 •
Physics
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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Ответ:
The smallest microwave frequency is 1.5 GHz.
Explanation:
Given that,
Distance d= 20 cm
We need to calculate the wavelength
Using formula for maximum diffraction
For maximum,![\sin\thea=1](/tpl/images/0055/4529/0ebba.png)
We need to calculate the frequency
Hence, The smallest microwave frequency is 1.5 GHz.
Ответ:
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Explanation:
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