Electromagnetic Waves

What does RADAR mean?

In radio communication and broadcasting, what device is used to convert sound waves to electrical signals?

What term refers to the use of light in medical treatment of a variety of ailments such as topical infections?

Radio and sound waves both travel at the speed of light. True or False

In radio communication, what does FM stand for?

A mobile phone works by transmitting radio waves which are received by cell sites to a target mobile phone. True or False

Which EM wave is used to treat cancer?

What term refers to a cancer treatment that uses high dose of radiation to treat cancer and shrink tumors?

Which EM wave helps our body to produce a certain vitamin that is essential in our body's calcium absorption?

Which EM wave is used to heat or cook food?

Which EM wave is used in sterilizing water from drinking fountains?

To which EM wave are you contact with while watching your favorite noon time show on TV?

These are long, thin strands arranged in bundles and are used in communication.

Long wavelength X-rays can penetrate the flesh and our bones. True or False

Which layer of the atmosphere helps radio waves to bounce back and enable these radio communication signals to be heard over vast distances?

Which EM wave is used in fiber optic communication, photography and illumination?

Which EM wave is used to show the temperature variation of the body?

Which EM wave is used in checking signature on passbook?