MHT CET 2026 18th April Morning Shift | MHT CET Year Wise Previous Years Questions

MHT CET 2026 18th April Morning Shift

MCQ (Single Correct Answer)

-0

In case of photoelectric emission from certain metal, the cutoff frequency is $\nu$. If the radiation of frequency $3\nu$ is incident on the metal plate, the maximum possible velocity of the emitted electrons will be ($m$ = mass of electron, $h$ = Planck's constant)

$\sqrt{\dfrac{h\nu}{2m}}$

$\sqrt{\dfrac{h\nu}{m}}$

$2\left(\sqrt{\dfrac{h\nu}{m}}\right)$

$\sqrt{\dfrac{2h\nu}{m}}$

MHT CET 2026 18th April Morning Shift

MCQ (Single Correct Answer)

-0

The triply ionized beryllium ($\text{Be}^{+++}$) has the same electron orbital radius as that of the ground state of hydrogen. Hence, the energy state of triply ionized beryllium is (Given $Z = 4$ for beryllium)

$n = 4$

$n = 3$

$n = 2$

$n = 1$

MHT CET 2026 18th April Morning Shift

MCQ (Single Correct Answer)

-0

The angular momentum of the electron in the third Bohr orbit of a hydrogen atom is '$l$' so its angular momentum in the fourth Bohr orbit is

$4l$

$\left(\dfrac{5}{4}\right)l$

$\left(\dfrac{4}{3}\right)l$

$\left(\dfrac{3}{2}\right)l$

MHT CET 2026 18th April Morning Shift

MCQ (Single Correct Answer)

-0

Which one of the following statements is 'WRONG' regarding LED?

LED's have long lifetime if properly manufactured.

Colours produced by LED's do not fade out.

LED's are energy efficient.

Brightness of light emitted by LED cannot be controlled.

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