3 years ago

Does changing amplitude, wavelength or frequency play a role in how bluetooth acts?

Physics

1 answer:

Mandarinka [93]3 years ago

3 0

Answer:

Yes

Explanation:

Yes, bluetooth devices work in a frequency range between 2.4 - 2.485GHz. Outside this frequency the devices will not communicate with each other correctly. This frequency equals a wavelength of around 1cm. Therefore, any change in the amplitude or wavelength would need to be in relation to each other in order to maintain the frequency in the required range for the bluetooth device to work accordingly. If one increases while the other remains the same it can easily change the frequency to outside the range.

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g PRACTICE ANOTHER Two trains approach each other on separate but adjacent tracks. Train 1 is traveling at a speed of 30.3 m/s a

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Answer:

f'= 607.8 Hz

Explanation:

This is a Doppler effect exercise due to the relative velocity of the sound source and the observer.

By the time the source and the observer are getting closer the expression is

f ’= $f_o \ \frac{ v+ v_o}{v - v_s}$

where vs is the speed of the source, vo is the speed of the observer, if the bodies move away the signs are exchanged

in this case, train 1 emits sound, so its speed is v_s = 30.3 m / s and train 2 is the receiver of the sound v₀ = 22.5 m / s

let's calculate

f ’= $520 \ ( \frac{343 + 22.5}{343 - 30.3} )$ 520 (343+ 22.5 / 343 - 30.3)

f'= 607.8 Hz

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