EVERYDAY SCIENCE

Detailed explanation-1: -Light with longer wavelengths is absorbed more quickly than that with shorter wavelengths. Because of this, the higher energy light with short wavelengths, such as blue, is able to penetrate more deeply.

Detailed explanation-2: -Blue light penetrates best, green light is second, yellow light is third, followed by orange light and red light. Red light is quickly filtered from water as depth increases and red light effectively never reaches the deep ocean. Color is due to the reflection of different wavelengths of visible light.

Detailed explanation-3: -In addition to the general lack of light, colors (wavelengths of light) are differentially absorbed by water. Red and orange are absorbed first while blue penetrates best. For this reason, underwater movies or photographs made with natural light look blue.

Detailed explanation-4: -Wavelength decreases as energy increases as you move from red to violet light across the color spectrum. Blue light however penetrates the water the best. This is why the ocean can appear in many different shades of blue.

Detailed explanation-5: -In water, absorption is strong in the red and weak in the blue, thus red light is absorbed quickly in the ocean leaving blue. Almost all sunlight that enters the ocean is absorbed, except very close to the coast. The red, yellow, and green wavelengths of sunlight are absorbed by water molecules in the ocean.