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3 years ago

What is the frequency of 20 mm microwaves? A) 100 MHz B) 400 MHz C) 15 GHz D) 73 GHz E) 98 GHz

Physics

1 answer:

Lera25 [3.4K]3 years ago

3 0

Answer:

Explanation:

Given wavelength = 20 mm = 20 x 10⁻³ m

The microwaves are electromagnetic waves so their velocity will be equal to

3 x 10⁸ m /s.

Now frequency of microwave = velocity / wavelength

= 3 x 10⁸ / 20 x 10⁻³ = 1.5 x 10¹⁰ = 15 x 10⁹ = 15 GHz.

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What happens when the density of a medium increases

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EleoNora [17]

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<h3> What is speed?</h3>

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Hence, the speed of the water in the wider part will be 1.194 m/sec.

To learn more about the speed, refer to the link;

brainly.com/question/7359669

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1 year ago

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stira [4]

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3 years ago

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Amiraneli [1.4K]

Answer:

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