Physics
2025 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE PH 2025 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 22–24 of 65. Imported answers require review unless explicitly marked reviewed.
Question 22
Open questionPHMCQ1 markNeeds review
Consider one mole of a monovalent metal at absolute zero temperature, obeying the free electron model. Its Fermi energy is
. The energy corresponding to the filling of
electrons, where
is the Avogadro number, is
. The value of
isYour answerChoose one option.
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Open questionPHMCQ1 markNeeds review
A paramagnetic material containing paramagnetic ions with total angular momentum
is kept at absolute temperature
. The ratio of the magnetic field required for 80% of the ions to be in the lowest energy state to that required for having 60% of the ions to be in the lowest energy state at the same temperature isYour answerChoose one option.
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Open questionPHMSQ1 markNeeds review
Which of the following option(s) is/are correct for the ground state of a hydrogen atom?
Your answerSelect all correct options. You can choose more than one.
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