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[" Q8.If the elevation of the sun change...

[" Q8.If the elevation of the sun changes from "],[30^(@)" to "60^(@)" then the difference between the "],[" length of shadow of a pole "15m" high is "^(*)],[" O "7.5m],[" O "15m],[" O "10sqrt(3)m],[" () "5sqrt(3)m]

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