sneha bohot hogaya ab shubham shubham ab gud bye or kal marne ke liye taiyar rehna
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palak ye shubham ko toh me baht maruga
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In physics, refraction is the change in direction of a wave passing from one medium to another or from a gradual change in the medium. Refraction of light is the most commonly observed phenomenon, but other waves such as sound waves and water waves also experience refraction.
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