Question

Explain the concept of light as an electromagnetic wave in space. This is an extended essay question so please provide 3 examples or points as well as a general answer to the question above.

Answer 1

Electromagnetic radiation is a form of energy that all around.

thes EM waves are

Radio waves,

Micro waves,

X - Rays ,

Gamma Rays,

and one of the natural form of energy is Sunlight.

and visible spectrum of wide range of electromagnetic wavelengths.

RADIO WAVES :

it is starting of the spectrum

30 Billion Hertz to 30 GHz.

these are used in the commuincation system.

MICRO WAVES :

these are from 3 GHz to 30 Trillion Hertz

used in the RADARs..

INFRARED :

30 T Hz to 400 T Hz

these are invisible to Human eyes

VISIBLE :

range of 400 T Hz to 800 T Hz

all are visible to human eyes.

ULTRAVIOLET :

range of 8 X 10¹⁴ -- 3 X 10¹⁶ Hz

but harmful.

X - RAYS :

range of

3 X 10¹⁶ to 10¹⁸ Hz .

which are used in industries, hospitals , research...

GAMMA RAYS :

ranges of 10¹⁸ Hz to 100 pm

Very harmful.