Biology Bioenergetics ETEA 2022
PMDC Verified Question 44 of 67
The range of visible light is from:
A
300-650 nm
B
350-700 nm
C
380-750 nm
D
430-790 nm
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: 380-750 nm
Concept:

The visible light spectrum is the segment of the electromagnetic spectrum that the human eye can view, and which drives photosynthesis.

Solution:

  • The accepted standard range of visible light is approximately 380 nm to 750 nm.
  • Photosynthetic pigments specifically absorb various wavelengths within this exact spectrum to capture energy.


Why other options are incorrect:

  • Other ranges are either too narrow, omitting key red or violet wavelengths, or shift too far into the infrared or ultraviolet regions.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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