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Mobile: A mobile is a wireless hand held
phone that allows users to make calls, receive
call and sent and receive text messages.

Key Words
Broadcast: To transmit from a radio or television sta on.
Wireless: Without wire.

I have learnt that
 Radio, newspaper, television, telegram, le er, telephone,

computer and mobile are means of communica on.
 Telegram is a one of the fastest means of communica on.

Test Yourself
Write the names of these means of communica on.

Exercise (Summa ve Assessment)

A. Mul ple Choice Ques ons. (MCQs)
Tick () the correct op on.

1. ____________ is a small part of electromagne c signals over

a long distance.

(a) radio (b) telegram

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