GATE PH 2026 Paper 1 — page 9

Questions 25–27 of 65. Imported answers require review unless explicitly marked reviewed.

Paper practice 65 questionsPage 9 of 22

Schematic variation of the specific heat

of an ideal gas of diatomic molecules with temperature

is shown in the figure below. For rotational energy

and vibrational energy

of the molecule, which of the following options is/are correct? Here

is the Boltzmann constant.

Your answerSelect all correct options. You can choose more than one.

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If the perturbation

is added to the Hamiltonian of a one-dimensional harmonic oscillator, the matrix element

is/are non-zero for which of the following states? Here, the eigenstates of the harmonic oscillator are denoted by

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For which of the following functions does the Laplacian vanish?

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2026 · Paper 1