There are seven types of electromagnetic radiation. The electromagnetic
spectrum organizes them by wavelength and frequency. The top of a wave
is called the crest. Wavelength is the distance from the crest of one wave to
the crest of the next. This distance can be as big as a football field or as
small as an atom's nucleus. Wavelength is typically measured in meters or
nanometers (inm = 0.0000000001m). Frequency is the number of times a
crest occurs per second. The unit of measurement for frequency is Hertz (1
Hz = one cycle per second). There is an inverse relationship between
wavelength and frequency. That means, types of waves with longer
wavelengths have lower frequencies. Shorter wavelengths have higher
frequencies. The order of waves in the spectrum is as follows: radio waves,
microwaves, infrared, visible light, ultraviolet, x-rays and gamma rays.
Each type of wave has important uses and some risks.
According to this passage, the seven different types of electromagnetic radiation
A are useless and harmless.
B
have the same frequencies.
have different wavelengths.
are organized on separate spectrums.
Answers: 2
Physics, 22.06.2019 15:00, annapittbull12
When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell
Answers: 1
Physics, 22.06.2019 15:30, jonathanmagana112002
Charge is distributed along the entire x-axis with uniform density λ. how much work does the electric field of this charge distribution do on an electron that moves along the y-axis from y = a to y = b? (use the following as necessary: a, b, ε0, λ, and q for the charge on an electron.)
Answers: 3
There are seven types of electromagnetic radiation. The electromagnetic
spectrum organizes them by...
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