The physics and chemistry aren't any easier. I'd say at-least Physics had the largest delta compared to SAT subject tests or even APs. While the SAT was asking

The physics and chemistry aren't any easier. I'd say at-least Physics had the largest delta compared to SAT subject tests or even APs. While the SAT was asking about basic kinetic motion in classical mechanics, JEE was asking about wave-particle duality and calculating uncertainty in motion of photon-electron collisions iirc.