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28. (a) Explain why, a stick half immersed in water appears to be bent at the surface. Drawto illustrate your answer. |
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Answer» The main reason behind this phenomenon is refraction. ...Water has higher refractive index than air which causes refraction. Due to the change in medium the speed of light decreases. The refraction causes difference in speed of light thestick kept inwater appearsto bebentor broken. |
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