1.

A stick of length l rests againsts the floor and a wall of a room. If the stick begins to slide on the floor, then the locus of its middle point is

Answer»

`3x^(2)+3Y^(2)=L^(2)`
`4x^(2)+4y^(2)=l^(2)`
`2x^(2)+2Y^(2)=l^(2)`
`X^(2)+y^(2)=l^(2)`

Answer :B


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