Physics Alternating Current PMC 2021
PMDC Verified Question 85 of 127

The narrow spectral region that lies between the Infrared (IR) and Ultraviolet (UV) regions of the electromagnetic spectrum is called:
A
Radio waves
B
X-ray region
C
Visible light
D
None of these
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Visible light
Concept:

The electromagnetic spectrum is classified into bands based on wavelength and frequency.

Solution:

The visible light band occupies the narrow range of wavelengths from approximately \( 400\text{ nm} \) to \( 700\text{ nm} \). This band is positioned directly between the longer-wavelength Infrared (IR) band and the shorter-wavelength Ultraviolet (UV) band.

Why other options are incorrect:

  • X-rays lie at shorter wavelengths beyond the UV band.


  • Radio waves lie at longer wavelengths beyond the IR band.

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