The length of the shadow of a vertical tower on level ground increases – McqOptions

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1.	The length of the shadow of a vertical tower on level ground increases by 10 m when the altitude of the Sun changes from 45° to 30° . Then, the height of the tower is:
A.	5 (√3+1)m
B.	5(√3-1)m
C.	5√3m
D.	5/√3 m
Answer» B. 5(√3-1)m

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