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प्रश्न
When a parallel beam of light enters a water surface obliquely at some angle, what is the effect on the width of the beam?
अति संक्षिप्त उत्तर
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उत्तर
When a parallel beam of light enters water obliquely, it bends towards the normal due to refraction. The width of the beam diminishes as the rays converge in the denser medium (water).
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