Q: The length of the shadow of a vertical tower on level ground increa – McqOptions

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1.	Q: The length of the shadow of a vertical tower on level ground increases by 10 meters when the altitude of the sun changes from 45° to 30°. Then the height of the tower is
A.	5 ( √3 + 1 ) meters
B.	5 ( √3 - 1 ) meters
C.	5√3 meters
D.	$$ {5\over √3} meters $$
Answer» B. 5 ( √3 - 1 ) meters

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