Question

why soap bubble seems to be coloured in presence of light since its transparent?

Answer 1

this is because of reflection of light 
you know that when light falls on any white object then prism forms
so the buuble
seems
to be
colored
when light 
falls on
it

Answer 2

Answer:

When light shines onto a bubble it appears to change colour. Unlike those seen in a rainbow, which arise from differential refraction, the colours seen in a soap bubble arise from interference of light reflecting off the front and back surfaces of the thin soap film.

Explanation:

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