1.

An aeroplane takes flight from a place towards another place in direction thetaN of E in a strong wind of velocity U to the west. The speed of plane in still air is V. Distance the two places is L If T_(1), T_(2)are time of travel of on ward and return journey, thenT_(1) T_(2)= ..........

Answer»

`(L^(2))/(v^(2)+U^(2))`
`(L^(2))/(v^(2)-u^(2))`
`(2L^(2))/(v^(2)-u^(2))`
`(L^(2))/(2(v^(2)-uu^(2)))`

ANSWER :B


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