Question

Roshan is looking at a red rose. What would be the difference between the shadow and the reflection of this rose?

Answer 1

HeRe IS UR AnS:

The image of a red rose will look red, whereas its shadow is black

The rose looks red to Roshan because it reflects wavelengths within that part of the spectrum. The rose absorbs all other visible colors. So the rose either reflects (bounces back) light or absorbs it, thereby blocking it. The shadow is formed by that part of the ground that receives little light because it’s been blocked by the rose. Little or no light = black (or very dark; if you really look at shadows you’ll see that they’re not actually black). This is because here on earth light comes from all over the place as it is reflected by surrounding objects and surfaces, diffracted by moisture in the air, etc.

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