Why there will be jiggling of air at the top of fire?
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density of air varies with change in temp.,which leads to changes in optical densities of the air medium above the fire
hence refractive index changes at every moment and bending of light will be diff. at diff. moments ... Hence it appears like that
hence refractive index changes at every moment and bending of light will be diff. at diff. moments ... Hence it appears like that
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