A thin circular metal disc of radius 500mm is set rotating about a central axis normal to its plane upon raising its temperature gradually, the radius increases to 507.5 mm, the percentage change in the rotational KE will be -----

A thin circular metal disc of radius 500mm is set rotating about a cen

1.	A thin circular metal disc of radius 500mm is set rotating about a central axis normal to its plane upon raising its temperature gradually, the radius increases to 507.5 mm, the percentage change in the rotational KE will be -----
Answer» `1.5%` `-1.5%` `3%` `-3%` ANSWER :D