MHT CET 2024 3rd May Evening Shift | MHT CET Year Wise Previous Years Questions

MHT CET 2024 3rd May Evening Shift

MCQ (Single Correct Answer)

-0

In Young's double slit experiment, in an interference pattern, second minimum is observed exactly in front of one slit. The distance between the two coherent sources is ' $d$ ' and the distance between the source and screen is ' $D$ '. The wave length of light $(\lambda)$ used is

$\frac{\mathrm{d}^2}{\mathrm{D}}$

$\frac{\mathrm{d}^2}{2 \mathrm{D}}$

$\frac{\mathrm{d}^2}{3 \mathrm{D}}$

$\frac{d^2}{4 D}$

MHT CET 2024 3rd May Evening Shift

MCQ (Single Correct Answer)

-0

An observer moves towards a stationary source of sound with a velocity of one-fifth of the velocity of sound. The percentage increase in the apparent frequency is

$5 \%$

$10 \%$

$20 \%$

$25 \%$

MHT CET 2024 3rd May Evening Shift

MCQ (Single Correct Answer)

-0

A diatomic molecule has moment of inertia ' I ', By applying Bohr's quantization condition, its rotational energy in the $\mathrm{n}^{\text {th }}$ level is $[\mathrm{n} \geq 1]$ [h= Planck's constant]

$\frac{1}{\mathrm{n}^2}\left(\frac{\mathrm{~h}^2}{8 \pi^2 \mathrm{I}}\right)$

$\frac{1}{\mathrm{n}}\left(\frac{\mathrm{h}^2}{8 \pi^2 \mathrm{I}}\right)$

$n\left(\frac{h^2}{8 \pi^2 \mathrm{I}}\right)$

$\mathrm{n}^2\left(\frac{\mathrm{~h}^2}{8 \pi^2 \mathrm{I}}\right)$

MHT CET 2024 3rd May Evening Shift

MCQ (Single Correct Answer)

-0

The frequency of incident light falling on a photosensitive material is doubled, the K.E. of the emitted photoelectrons will be

unchanged.

two times its initial value.

more than two times its initial value.

less than two times its initial value.