A reflecting surface is represented by the equation Y = (2L)/(pi) sin ((pix)/(L)) , 0 lt= x lt= L.A ray travelling horizontally becomes vertical after reflection. The coordinates of the point (s) where this ray is incident is

A reflecting surface is represented by the equation Y = (2L)/(pi) sin

1.	A reflecting surface is represented by the equation Y = (2L)/(pi) sin ((pix)/(L)) , 0 lt= x lt= L.A ray travelling horizontally becomes vertical after reflection. The coordinates of the point (s) where this ray is incident is
Answer» `(L/4 , (sqrt2L)/(PI))` `(L/3, (sqrt3L)/(pi))` `((3L)/(4), (sqrt2L)/(pi))` `((2L)/(3) , (sqrt3L)/(pi))` Answer :B::D

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A reflecting surface is represented by the equation Y = (2L)/(pi) sin ((pix)/(L)) , 0 lt= x lt= L.A ray travelling horizontally becomes vertical after reflection. The coordinates of the point (s) where this ray is incident is

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