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The length of the shadow of a vertical p...

The length of the shadow of a vertical pole of height `h ,` thrown by the suns rays at three different moments are `h ,2h and 3h` . Find the sum of the angles of elevation of the rays at these three moments.

A

`( pi)/(2)`

B

`(pi)/(3)`

C

`(pi)/(4)`

D

`(pi)/( 6)`

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The correct Answer is:
A
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