Question

A piece of cloth appears red in sunlight. How will it appears when held in the blue portion of a spectrum?

Answer 1

Answer:

According to the circumstances mentioned in the question that, A piece of cloth appears red in sunlight how will it appear when held in the blue portion of a spectrum. It will appear black in the blue spectrum. Because the red colour is absorbed by the blue spectrum, that's why no colour will be reflected to our eyes.