EASY
12th Tamil Nadu Board
IMPORTANT
Earn 100

What does RADAR stand for?

Important Questions on Communication Systems
MEDIUM
12th Tamil Nadu Board
IMPORTANT
A message signal of frequency and peak voltage of volts is used to modulate a carrier of frequency and peak voltage of volts. Determine modulation index

EASY
12th Tamil Nadu Board
IMPORTANT
Which of the following is an application of GPS technology?

EASY
12th Tamil Nadu Board
IMPORTANT
Mention one application of mobile communication.

EASY
12th Tamil Nadu Board
IMPORTANT
Which generation mobile telephony is suitable for video conferencing?

MEDIUM
12th Tamil Nadu Board
IMPORTANT
Briefly discuss the fist generation, second generation and the third generation mobile telephony. Of which generation among the above mentioned three, the GPRS belongs to?

EASY
12th Tamil Nadu Board
IMPORTANT
Given below in the left column are different modes of communication using the kinds of waves given in the right column.
Optical fibre communication | Ultrasound | ||
Radar | Infrared light | ||
Sonar | Microwaves | ||
Mobile phones | Radio waves |
From the options given ahead, find the most appropriate match between entries in the left and the right column.

EASY
12th Tamil Nadu Board
IMPORTANT
Which Social Networking Site officially launched "Express Wi-Fi" internet service in India?

EASY
12th Tamil Nadu Board
IMPORTANT
What is Internet in communication system? Mention its applications.
