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When it is raining vertically down, to a...

When it is raining vertically down, to a man walking on road the velocity of rain appears to be 1.5 times his velocity. To protect himself from rain he should hold the umbrella at an angle `theta` to vertical. Then `tan theta=`

A

`2/sqrt(5)`

B

`sqrt(5)/2`

C

`2/3`

D

`3/2`

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The correct Answer is:
A
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