Section 7. Convention duties. The convention shall meet after the election of the delegates and prepare such revisions, alterations, or amendments to the constitution as may be deemed necessary. They shall be submitted to the qualified electors for ratification or rejection as a whole or in separate articles or amendments as determined by the convention at an election appointed by the convention for that purpose not less than two months after adjournment. Unless so submitted and approved by a majority of the electors voting thereon, no such revision, alteration, or amendment shall take effect.