Question: Place the same device under four light sources with equal illuminance and irradiate continuously for 2 minutes. In which scenario will its visible-light transmittance be the lowest?
A. High-CRI indoor LED
B. Quartz mercury lamp
C. Halogen incandescent lamp
D. Near-infrared heating lamp
Clues:
1. The image contains two panels, showing the same pair of sunglasses in what appears to be two different states.
2. In the top panel, the lenses of the sunglasses are light gray and relatively transparent.
3. In the bottom panel, the lenses of the sunglasses are a much darker gray/purple and are less transparent.
4. The frame of the sunglasses is dark and glossy.
5. A "T" shaped logo is visible on the hinge of the sunglasses' temple.
6. A bright, starburst-shaped reflection of a light source is visible on the right lens in both panels.
Answer: B
Category: Chemistry