Communication systems

Communication systems

11th - 12th Grade

26 Qs

quiz-placeholder

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Communication systems

Communication systems

Assessment

Quiz

Physics

11th - 12th Grade

Medium

NGSS
HS-PS4-1

Standards-aligned

Created by

Year C

Used 1+ times

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26 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The variation of either the amplitude or the frequency of the carrier wave called

Demodulation

Modulation

Bandwidth

Sideband

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

For this wave determine the frequency of carrier wave

50 Hz

10 Hz

10 kHz

100 kHz

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

For this wave determine the frequency of the information signal

10 kHz

5 kHz

100 Hz

200 kHz

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The variation with frequency f of the amplitude A of the transmitted wave is shown in Figure. For this transmission determine the wavelength of the carrier wave

33 km

30 cm

330 mm

110 km

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The variation with frequency f of the amplitude A of the transmitted wave is shown in Figure. For this transmission determine the bandwidth

900 kHz

918 kHz

18 kHz

909 Hz

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The variation with frequency f of the amplitude A of the transmitted wave is shown in Figure. For this transmission determine the maximum frequency of the transmitted audiosignal

900 kHz

9 kHz

18 kHz

909 Hz

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The signal-to-noise ratio at the receiver must not fall below 28 dB. Calculate the minimum input signal power to the receiver

0.45mW

0.36 μW\mu W

0.23 mW

0.55 W

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