Why is white light stronger than red, green and blue light?

However, it is the case that blue light scatters the As you've said in your question, blue light has a smaller wavelength than red light. Assuming you are talking about the sky, the scattering is from particles much smaller than the wavelength of light. read more

The photosynthesis takes place in the chloroplast, where four main photosynthetic pigments called chlorophyll a, chlorophyll b, xanthophylls, and carotenes are found. All these pigments absorb light and utilize the light energy in photosynthesis. Chlorophyll is the dominant pigment in plants which absorb blue and red light. read more

With red light, colours other than red will not be seen. A green object is green under white light because it reflects green light and absorbs the rest. read more