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CS431 Assignment 01 Spring 2021 Solution / Discussion Due Date: 17-05-2021

Question No.1                                                                                                                      (5 Marks)

A wave is transmitted from a sender to receiver. It has an amplitude of 6.8 cm, a time period of 0.01 seconds and the distance from a crest to the neighboring trough of 14.8 cm. By writing all necessary formulas and calculation steps, determine the frequency of this wave.

Answer: As we know that

v = d/t = 0.148m/0.01s = 14.8m/s

now

v = f ë

so f = v/ë

f = 14.8m/s

       6.8m    = 2.18 Hz

Question No. 2                                                                                                                     (5 Marks)

Calculate the wavelength of a wave, having speed/velocity equal to 30,000 nm/s and frequency equal to 60 hertz.

Answer: As we know that

v = 30,000nm/s = 30,000*10-9m/s = 0.3*10-4m/s

v = f ë

ë = v/f

ë = 0.3*10-4m/s

          60Hz          = 0.005*10-4 = 5*10-7m

 

Note: Write all necessary formulas, calculation steps along with the appropriate unit with your answer.

 

Question No.3                                                                                                                      (5 marks)

Identify one-way and two-way communication examples from the following:

 

Example

One-way \ Two-way

Radio

One-way

Cell phones

Two-way

TV

One-way

WiFi

Two-way

Walkie talkie

Two-way

 

Best of Luck

 

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CS431 Assignment 01 Spring 2021 Solution

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CS431 Assignment 1 Solution Spring 2021 || Wireless Communication || 100% Correct Solution

Question No.1                                                                                                                      (5 Marks)

A wave is transmitted from a sender to receiver. It has an amplitude of 6.8 cm, a time period of 0.01 seconds and the distance from a crest to the neighboring trough of 14.8 cm. By writing all necessary formulas and calculation steps, determine the frequency of this wave.

Answer: As we know that

v = d/t = 0.148m/0.01s = 14.8m/s

now

v = f ë

so f = v/ë

f = 14.8m/s

       6.8m    = 2.18 Hz

Question No. 2                                                                                                                     (5 Marks)

Calculate the wavelength of a wave, having speed/velocity equal to 30,000 nm/s and frequency equal to 60 hertz.

Answer: As we know that

v = 30,000nm/s = 30,000*10-9m/s = 0.3*10-4m/s

v = f ë

ë = v/f

ë = 0.3*10-4m/s

          60Hz          = 0.005*10-4 = 5*10-7m

 

Note: Write all necessary formulas, calculation steps along with the appropriate unit with your answer.

 

Question No.3                                                                                                                      (5 marks)

Identify one-way and two-way communication examples from the following:

 

Example

One-way \ Two-way

Radio

One-way

Cell phones

Two-way

TV

One-way

WiFi

Two-way

Walkie talkie

Two-way

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