What is electromagnetic spectrum? Name the important part of the electromagnetic spectrum.

Write electromagnetic spectrum.

What is the electromagnetic spectrum?

Discuss electromagnetic spectrum.

What is electromagnetic spectrum? Which part of the electromagnetic spectrum is used in operating a radar?

Name the main parts of electromagnetic spectrum.

The visible portion of the electromagnetic spectrum is

What is electromagnetic spectrum? Give its four uses.

What is called as electromagnetic spectrum ?

What is electromagnetic spectrum? To what uses it is put to?