EVERYDAY SCIENCE

SCIENCE

PHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which coloured surface absorbs all light?
A
Grey
B
Blue
C
Perfectly black
D
White
Explanation: 

Detailed explanation-1: -blackbody, also spelled black body, in physics, a surface that absorbs all radiant energy falling on it. The term arises because incident visible light will be absorbed rather than reflected, and therefore the surface will appear black.

Detailed explanation-2: -Vantablack absorbs up to 99.965% of visible light and can be created at 400 °C (752 °F).

Detailed explanation-3: -the color strips. Obviously the black strip absorbed the most. But the red, blue, and green ones did not absorb much. Interestingly, the dark gray and purple ones absorbed absorbed more than I would imagine.

Detailed explanation-4: -Black objects absorb all the light shined on them. There is no reflected light, so we see black (the absence of color). If all of the light is reflected, we see all the wavelengths, which means we see white light.

Detailed explanation-5: -As shown in the next figure, an object is seen as black if it absorbs all colors of white light. A white object reflects all colors of white light equally.

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