12th Class Physics Sample Paper Physics Sample Paper-9

  • question_answer
    Disha's younger sister Divya watching coloured soap bubbles and eagerly asked her elder sister Disha, why it happens? Disha is a student of class XIIth and explained that phenomenon to her sister.
    (i) What values did Disha show to her?
    (ii) Name the phenomenon involved in coloured appearance of the bubbles.
    (iii) Explain that phenomenon.


    (i) Disha is a caring and responsible towards her sister and an intelligent student.
    (ii) Interference involved in the coloured appearance of the bubbles.
    (iii) The redistribution of wave's energy in a medium due to superposition of two coherent waves.

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