Which electromagnetic wave has the longest wavelength

Wavelength is the distance between one wave crest to the next. Waves in the electromagnetic spectrum vary in size from very long radio waves the size of buildings, to very short gamma-rays smaller than the size of the nucleus of an atom. Did you know that electromagnetic waves can not only be described by their wavelength, but also by their energy and frequency? Suggested Test Series. Suggested Exams. More Physics Questions Q1.

X-rays were discovered by:. When a body is immersed in a liquid the upward force experienced by it is known as :. Which among the following is a non-conservative force? The work done to move a unit charge from a point to another is called :. On which of the following scientific principles is an electric generator based? Which among the following is used in making windows for the X-ray tubes? How many electrons taken together make one coulomb?

An electron possesses a negative charge of:. The term radioactivity was coined by:. Testbook Edu Solutions Pvt. Our eyes can only see a small section of the complete electromagnetic spectrum. Normal, white light is actually made up of a rainbow of different colors, from red and orange to blue and purple. There are many other "colors" of light that we cannot see.

These include ultraviolet UV and infrared IR "light" that is just beyond the range of human vision. They also include more exotic forms of radiation such as X-rays, gamma rays, and radio waves.