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Two inclined planes OA and OB intersect ...

Two inclined planes OA and OB intersect in a horizontal plane having their inclinations `alpha and beta` with the horizontal as shown in figure. A particle is projected from P with velocity u along a direction perpendicular to plane OA. The particle strikes plane OB perpendicularly at Q.

If `alpha = 30^@ , beta = 30^@` the time of flight from P to Q is

A

`(g)/(tanalpha-tanbeta)`

B

`("gt")/(tanalpha-tanbeta)`

C

`(t)/(g(tanalpha-tanbeta))`

D

`("gt")/(g(tanalpha-tanbeta))`

Text Solution

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The correct Answer is:
B
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