Question:
The correct ascending order of the wavelengths of the following electromagnetic waves is: Ultraviolet, X-rays, Infrared, Gamma rays and Visible light.
The correct ascending order of the wavelengths of the following electromagnetic waves is: Ultraviolet, X-rays, Infrared, Gamma rays and Visible light.
Show Hint
Remember the wavelength order of electromagnetic waves:
\[
\text{Gamma}
<
\text{X-ray}
<
\text{UV}
<
\text{Visible}
<
\text{Infrared}
<
\text{Microwave}
<
\text{Radio}.
\]
As wavelength increases, frequency and photon energy decrease.
Updated On: Jun 18, 2026
- X-ray, Gamma ray, Ultraviolet, Infrared, Visible light
- Gamma ray, X-ray, Ultraviolet, Visible light, Infrared
- Gamma ray, X-ray, Infrared, Visible light, Ultraviolet
- Gamma ray, X-ray, Ultraviolet, Infrared, Visible light
Show Solution
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The Correct Option is B
Solution and Explanation
Step 1: Recall the electromagnetic spectrum.
The electromagnetic spectrum arranged in increasing wavelength is \[ \text{Gamma rays} < \text{X-rays} < \text{Ultraviolet} < \text{Visible light} < \text{Infrared} < \text{Microwaves} < \text{Radio waves}. \] Gamma rays have the shortest wavelength and highest frequency, whereas radio waves have the longest wavelength and lowest frequency.
Step 2: Arrange the given radiations.
From the standard electromagnetic spectrum, \[ \text{Gamma rays} < \text{X-rays} < \text{Ultraviolet} < \text{Visible light} < \text{Infrared}. \]
Step 3: Verify with the options.
Comparing the above order with the given choices, we find that option (2) exactly matches the ascending order of wavelengths.
Step 4: Final conclusion.
Therefore, the correct ascending order is \[ \boxed{ \text{Gamma ray} < \text{X-ray} < \text{Ultraviolet} < \text{Visible light} < \text{Infrared} } \] Hence, the correct option is \[ \boxed{(2)}. \]
The electromagnetic spectrum arranged in increasing wavelength is \[ \text{Gamma rays} < \text{X-rays} < \text{Ultraviolet} < \text{Visible light} < \text{Infrared} < \text{Microwaves} < \text{Radio waves}. \] Gamma rays have the shortest wavelength and highest frequency, whereas radio waves have the longest wavelength and lowest frequency.
Step 2: Arrange the given radiations.
From the standard electromagnetic spectrum, \[ \text{Gamma rays} < \text{X-rays} < \text{Ultraviolet} < \text{Visible light} < \text{Infrared}. \]
Step 3: Verify with the options.
Comparing the above order with the given choices, we find that option (2) exactly matches the ascending order of wavelengths.
Step 4: Final conclusion.
Therefore, the correct ascending order is \[ \boxed{ \text{Gamma ray} < \text{X-ray} < \text{Ultraviolet} < \text{Visible light} < \text{Infrared} } \] Hence, the correct option is \[ \boxed{(2)}. \]
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