Question
Physics Question on Electromagnetic waves
Radio waves are
A
produced by hot bodies
B
in the frequency range 109 Hz to 1012 Hz
C
suitable for radar systems
D
used in cellular phones to transmit voice communication
E
used to kill germs in water purifiers
Answer
used in cellular phones to transmit voice communication
Explanation
Solution
The correct option is (D) : used in cellular phones to transmit voice communication