All electromagnetic radiations are made up of photons. What is the difference between Radio wave, blue ligh?

Question

All electromagnetic radiations are made up of photons. What is the difference between Radio wave, blue ligh?

Answer 1

the energy.

there can be photons with different energy, but they always travel at the same speed regardless of energy. so that extra energy goes into making the wavelength shorter (in other words, the frequency goes up)

the path of a photon is shaped like a spring. the wavelength is the distance between two consecutive peaks in that path. the shorter the wavelength, the higher the energy and the high the frequency.

a radio wave has less energy than blue light, which is part of the visible spectrum. this is the electromagnetic spectrum in order from least energy to most energy:

Radio waves (including microwaves) < infrared waves < visible waves < ultraviolet rays < x rays < gamma rays

radio waves generally have very long wavelengths. the wavelength of waves used on radio stations are generally over a hundred meters long. radio waves cover anything under about one mm

microwaves (which are technically part of radio waves, but a lot of times are classified as a seperate part of the spectrum) can have a wavelength of a few cm to a few millimeters. the wavelength of microwaves used in a microwave oven should be around 2 cm

the infrared part of the spectrum is associated mostly with heat, and covers wavelengths from 1 mm to 750 nm

the visible part of the spectrum is the smallest part. it covers from 750 nm (red) to 400 nm (violet)

UV rays cover anything from 400 nm to 10 nm.

xrays are from 10 nm to 10 pm (picometers)

gamma rays, the strongest form of radiation, have wavelengths shorter than 10 pm.

Answer 2

Frequency.