Why are satellite dishes for radio waves very large, and dishes for microwaves much smaller?

Answer 1

Wavelength.

Radio waves have much greater wavelengths than microwaves.

  • Radio waves can have wavelengths of up to 100 kilometers
  • Microwaves can have wavelengths of up to 1 meter

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Answer 2

Satellite dishes for radio waves are large because radio waves have longer wavelengths, requiring larger dishes to effectively capture and focus the signals. Microwave satellite dishes, on the other hand, are smaller because microwaves have shorter wavelengths, allowing for more compact dish designs while still maintaining efficiency in capturing and focusing the signals. The size of the dish is directly related to the wavelength of the waves it is designed to receive, with longer wavelengths necessitating larger dishes for optimal performance.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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