Two fixed points A & B on a surface are such that line joining A & B completely lies on surface, then surface is

  • Option 1)

    a plane

  • Option 2)

    a sphere 

  • Option 3)

    not neccesarily a plane

  • Option 4)

    none of these

 

Answers (1)

As we have learned

Plane -

If a line joining any two points on a surface completely lies on it then the surface is called plane.

-

 

 For two particular points A & B line lies in surface it is not necessary that for every two points of surface, line will lie completely on surface 


Option 1)

a plane

Option 2)

a sphere 

Option 3)

not neccesarily a plane

Option 4)

none of these

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