Question

Write any four characteristics of electromagnetic wave give two uses of radio waves and microwaves

Answer 1

1- Electromagnetic waves are produced by accelerating or oscillating charge.

2- E.M waves do not require any material medium for their propagation.

3- E.M wave are transverse in nature.

Uses of Radio waves

1- they are used in radio and TV communication system.

2- Cellular phones use radio waves to transmit voice communication in the ulyrahigh frequency (UHF) band.

Microwaves.

1- Microwaves are used in Radar system for aircraft navigation.

2- Microwaves ovens are used for cooking purposes.

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