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Part CCSIR NET December 2023poisson-bracket-conditions

Poisson bracket conditions

Let q1,q2q_{1}, q_{2} be generalized coordinates and p1,p2p_{1}, p_{2} their conjugate momenta. Let a and b be such that Q1=q1,P1=ap1+16p2,Q2=p2,P2=2q1+bq2Q_{1} = q_{1}, P_{1} = a p_{1} + 16 p_{2}, Q_{2} = p_{2}, P_{2} = 2q_{1} + b q_{2} is a canonical transformation. Which of the following statements are true?

  1. A.a2+b2=2a^{2} + b^{2} = 2✓ Correct
  2. B.a − b = 2✓ Correct
  3. C.a + b = 2
  4. D.a = 1, b = 1

You have the answer. Trap Analysis is why the other three were written.

Not a worked solution repeated four times — the specific reasoning error each wrong option was built to reward, and why this one tests hypothesis dropped.

See pricing

50 are analysed free — try those first.

The trap it tests

Hypothesis dropped

A theorem applied without checking one of its preconditions.

Drill statements like this

Related counterexample: The Hamiltonian always equals the total energy

More on this topic

The chapter behind this: Hamiltonian mechanics, Poisson brackets and canonical transformations — free to read

From Classical Mechanics › Hamiltonian formalism and conservation laws

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