Bubbles of colourless soap solution appear coloured in sun light. Why ?

Bubbles of colourless soap solution appear coloured in sunlight.Why?

Why does the colour of the sun appear red during sunset?

Copper sulphate solution absorbs red colour form white light. Why?

Two soap bubbles of the same soap solution have diameters in the ratio 1 :2. What is the ratio of work done to blow these bubbles ?

On electroysing CuSO_(4) solution in presence of Pt , the solution becomes colourless, blue colour of solution disappears. Why?

On electrolysing CuSO_(4) solution in presence of Pt , the solution becomes colourless, blue colour of solution disappears. Why?

On electrolysing CuSO_(4) solution in presence of Pt , the solution becomes colourless, blue colour of solution disappears. Why?

The sun appears red at sun rise or sunset, why?