Question 64

PHNAT2 marksNeeds review
An electron in the Coulomb field of a proton is in the following state of coherent superposition of orthonormal states


Let

,

, and

represent the first three energy levels of the system. A sequence of measurements is done on the same system at different times. Energy is measured first at time

and the outcome is

. Then total angular momentum is measured at time

and finally energy is measured again at

. The probability of finding the system in a state with energy

after the final measurement is

. The value of

is _____ (in integer).

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2024PH

GATE PH 2024 · Paper 1

Physics · Original paper archive

Section
Physics
Question type
Numerical answer (NAT)
Marks
2 marks

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