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A body is projected with a certain speed...

A body is projected with a certain speed at angles of projection of `theta` and `90 - theta` The maximum height attained in the two cases are 20m and 10m respectively. The range for angle of projection `theta` is

A

`40sqrt(2)` m

B

`20sqrt(2)`m

C

`80sqrt(2)` m

D

`200sqrt(2)`m

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The correct Answer is:
A
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