Question

Difference between radio and telephone

Answer 1

1. radio was used in the past.

1. telephone is used now adays.

2.radio contains different channels.

2.telephone only help us to call some one.

Answer 2

Radio waves have a lower frequency and longer wavelength as compared to cell phone waves operating at higher microwave frequencies. Microwaves can carry a higher amount of information than radiosignals, and are transmitted in narrower beams which can be aimed and focused to a greater degree than radiowaves.