1.

An air bubble in a sphere having 4 cm diameter appears 1 cm from surface nearest to eye when looked along the diameter. If amg = 1.5, the distance of bubble from refracting surface is

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An air bubble in a sphere having 4 cm diameter appears 1 cm from surface nearest to eye when looked along the diameter. If amg = 1.5, the distance of bubble from refracting surface is




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