MHT CET 2026 11th April Morning Shift | MHT CET Year Wise Previous Years Questions

MHT CET 2026 11th April Morning Shift

MCQ (Single Correct Answer)

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Photoelectric emission is observed from a metallic surface for frequencies $v_1$ and $v_2$ of the incident light rays ($v_1 > v_2$). If the maximum values of kinetic energy of the photoelectrons emitted in the two cases are in the ratio of $k : 1$, then what is the threshold frequency of the metallic surface?

$\dfrac{v_1 - v_2}{k}$

$\dfrac{v_1 - v_2}{k - 1}$

$\dfrac{kv_1 - v_2}{k - 1}$

$\dfrac{kv_2 - v_1}{k - 1}$

MHT CET 2026 11th April Morning Shift

MCQ (Single Correct Answer)

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A photon and an electron have equal energy E. The ratio of $\lambda$(electron) to $\lambda$(photon) is proportional to

$1 : \sqrt{E}$

$\sqrt{E} : 1$

$1 : E$

$1 : E^2$

MHT CET 2026 11th April Morning Shift

MCQ (Single Correct Answer)

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The kinetic energy of the electron in an orbit of radius $r$ in hydrogen atom is proportional to ($e$ = electronic charge)

$\dfrac{e^2}{2r^2}$

$\dfrac{e^2}{r}$

$\dfrac{e^2}{2r}$

$\dfrac{e^2}{r^2}$

MHT CET 2026 11th April Morning Shift

MCQ (Single Correct Answer)

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The number of revolutions per second made by an electron in the first Bohr orbit of hydrogen atom is ($h$ = Planck's constant, $m$ is the mass of electron and $r$ is the radius of the orbit.)

$h / 4\pi^2 mr^2$

$h / 4\pi^2 mr$

$h / 4\pi mr$

$h / 4\pi^2 m^2 r^2$

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