
MOBILE COMMUNICATION UNIT 1
Authored by CHANDRASEKARAN R
Engineering
University
Used 1+ times

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40 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the two ray model, if the power of the transmitter increases, the received power will
Increase
Decrease
Stay the same
become zero
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diffraction occurs when the wave hits the __________ surfaces
sharp edge
rough
flat
smooth
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When a signal hits the sharp edge of a hill which of the following occurs?
Reflection
Diffraction
Scattering
Refraction
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Scattering happens when a wave encounters:
A large wall
A small object or rough surface
Open space
High voltage
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the free space model, the received power decreases with the square of
Frequency
Transmit power
Distance
Antenna height
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Small scale fading is caused by ______________
Drag shift
Doppler shift
Vertical shift
Horizontal shift
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which phenomenon occurs when a radio wave hits objects much smaller than its wavelength?
Reflection
Diffraction
Absorption
Scattering
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