medium · Act science
Two tables describe the properties of different light sources used in a botany experiment.(Wavelength): Source | Peak Wavelength (nm) Lamp A | 450 (Blue) Lamp B | 660 (Red) Lamp C | 550 (Green)(Absorption): Chlorophyll Type | Max Absorption Wavelength (nm) Type 1 | 430 - 470 Type 2 | 640 - 680 Based on these tables, which lamp would be LEAST effective for a plant containing only Chlorophyll Type 1 and Type 2?
- Lamp C is the least effective because its peak is not absorbed.
- Lamp A is the least effective because it has the shortest wavelength.
- Lamp B is the least effective because red light carries less energy.
- Lamp A and B are equally ineffective due to spectral overlap.
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