Whysics JEE
Textbooks teach you the rules. We teach you the edge where they break.
Deep skills for cracking JEE Advanced. One real question at a time, with the official numbers on how many got it wrong: the trap, the twist, and the one idea that survives it. Physics first; chemistry and maths follow.
The latest question
Bet you can't solve this JEE Advanced physics PYQ: 82% got it wrong
A magnet is spun just above an aluminium disc, and both are free to turn. Which way does the disc turn: with the magnet, the other way, or not at all?
How a Whysics question works
The trap
A real JEE Advanced question that most candidates got wrong, with the official numbers from the exam report. The obvious answer is the trap.
The twist
The textbook rule is true, under a hidden assumption. The question sits exactly where that assumption stops holding.
The idea
One idea that survives the twist, so the next question of the same kind is yours. Answer in the comments; every one gets a reply.
Three subjects
JEE Physics
Mechanics, electricity and the traps between them.
JEE Math
Limits, probability and the places where intuition slips.
JEE Chemistry
Entropy, equilibrium and reactivity, seen at the particle level.
Full lessons
The full explanations are in the making. The questions come first, on YouTube Shorts and Telegram; each full lesson follows here with the solution, the hints and the idea behind it.
How to join
- Watch the question on YouTube or Telegram and pause when it asks you to.
- Work it on paper. Think first; the choices are built to catch the fast answer.
- Post your answer and one line of why in the comments. Doubts from your own preparation are welcome too, and tell us which topic to break open next.
- Come back for the full explanation: the twist and the idea.
From the blog
Why the textbook answer can be wrong
A frictionless ramp, two capacitors and a rolling wheel all share one trap: a rule that is true under one hidden assumption, applied where the assumption fails.
How we check every number
Where the numbers in a Whysics lesson come from, how they are checked before release, and how challenge answers stay private until reveal day.