Which among the following electromagnetic waves has the SHORTEST wavelength?
a. infrared
b. microwave
c. radio wave
d. x-ray
ANSWER
Among the given choices above, the correct answer is letter d. x-ray.It is the wave with shortest wavelength among the choices, but gamma ray really has the shortest wavelength in the electromagnetic spectrum.
ELECTROMAGNETIC SPECTRUM
Electromagnetic spectrum refers to the range of colors, that represents the array of frequencies of electromagnetic radiation, their energies and wavelengths.
∆ The wave with the highest frequency is the Gamma Ray or the violet color. Wave with the lonngest wavelength is radio waves.
COLORS
In light spectrum (rainbow) the colors have equivalent electromagnetic waves.
• Red - Radio waves
• Orange - Microwave
• Yellow - Infrared
• Green - Visible light
• Blue - Ultraviolet
• Indigo - X-ray
• Violet - Gamma Ray
> When you arrange it this way, you can get the longest wavelength (from radio waves) to shortest wavelength (gamma ray).
> If you reverse this arrangement, from gamma ray to radio waves, you can get the highest frequency to shortest.
X-rays have wavelengths shorter than about 10 nm and longer than about 0.01 nm. It was discovered in 1895 by Wilhelm Roentgen, a physicist, while looking for cathode rays from glass vacuum tubes.
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WAVELENGTH
Which among the following electromagnetic waves has the SHORTEST wavelength?
a. infrared
b. microwave
c. radio wave
d. x-ray
ANSWER
Among the given choices above, the correct answer is letter d. x-ray. It is the wave with shortest wavelength among the choices, but gamma ray really has the shortest wavelength in the electromagnetic spectrum.
ELECTROMAGNETIC SPECTRUM
Electromagnetic spectrum refers to the range of colors, that represents the array of frequencies of electromagnetic radiation, their energies and wavelengths.
∆ The wave with the highest frequency is the Gamma Ray or the violet color. Wave with the lonngest wavelength is radio waves.
COLORS
In light spectrum (rainbow) the colors have equivalent electromagnetic waves.
• Red - Radio waves
• Orange - Microwave
• Yellow - Infrared
• Green - Visible light
• Blue - Ultraviolet
• Indigo - X-ray
• Violet - Gamma Ray
> When you arrange it this way, you can get the longest wavelength (from radio waves) to shortest wavelength (gamma ray).
> If you reverse this arrangement, from gamma ray to radio waves, you can get the highest frequency to shortest.
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Answer:
d. x-ray
Explanation:
X-rays have wavelengths shorter than about 10 nm and longer than about 0.01 nm. It was discovered in 1895 by Wilhelm Roentgen, a physicist, while looking for cathode rays from glass vacuum tubes.