Which of the following form(s) a virtual and erect image for all posinos of the object?

Which of the following form(s) a virtual and erect image for all position of the object?

Which of the following form(s) a virtual and erect image for all position of the object?

Which of the following form(s) a virtual and erect image for all positions of the object

Which of the following form(s) a virtual and erect image for all positions of the object? (1) Convex lens (2) Concave lens (3) Convex mirror (4) Concave mirror

Which of the following forms a virtual and erect image for all position of the object.

Which of the following forms (s) a virtual and erect image fo all positions of the object?

Which of the following form virtual and erect image for all positions of a self- luminous subject

Which of the following always forms virtual image for real objects ?