Why do plane mirrors and convex mirrors form only virtual images?

a) because they cannot make light rays converge
b) because they cannot make light rays converge
c) because they both show a wide angle of view
d) because they only reflect light

State one advantage and one disadvantage of using a plane mirrior as a driving mirrior

Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?

How is science controlled by the governerment