Question

Q7. Take three identical sized towels of three different colours. Hang them outside in the Sun and observe
the colour of their shadows. Is the colour of the shadows the same? Why?
​

Answer 1

Answer: the colour i take is red, blue or green

The color of shadows of these towels are black bluish irrespective or whether the towel are red, blue or green color all will have shadows of black color.

Color of shadow is black bluish because light source is blocked by an opaque object.It occupies all three dimensional volume behind an object with light infront of it.

The shadow cast by an opaque object during daylight illuminated by sunlight has black bluish color due to Rayleigh scattering, the property that causes sky to appear blue.

The opaque object is able to block the light of the sun, but not the ambient light of sky which is blue as atmosphere molecules scatter blue light more effectively so as a result shadow is bluish.