Answers

2016-01-18T21:11:34+05:30
It is not always blue
it works like a rainbow .the soap provides structural support and the water sandwiched in between splits light into different colors
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because of dispersion of light they appear as blue colour
2016-01-18T21:50:35+05:30
Bubbles are sometimes blue or indigo in color because blue color has higjtes reftactive index thus light reflects it while orher colors not
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