JEE CHEMISTRY MCQ: STRUCTURE OF ATOM

1 Hard

1 of 1

Application +4 | -1

In a relative scale the deBrogle wave length of moving neutron at

27^{\circ} \mathrm{C}

\mathrm{y}_1 ; \mathrm{~A}^0

and the de-Broglees wave length of moving

\mathrm{SO}_2

molecules at

927^{\circ} \mathrm{C}

\mathrm{y}_2 \mathrm{~A}^0

then

\left(\frac{\mathrm{y}_1}{\mathrm{y}_2}\right)=

? (Assume that mass of neutron

\&

proton is same) (mol. Wt of

\mathrm{SO}_2=64

)

View answer and explanation

Correct option: A

Option A (16) is correct because it is the ratio of the de Broglie wavelengths calculated using the given temperatures and masses.

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n^{\text {th }}

\mathrm{A}

\times 10^{12}

\frac{1}{{ }^{\prime} \mathrm{B}^{\prime}}

\ell = 1,\,\,m = 0

1.25 \times {10^{ - 13}} \times {A^{1/3}}\mathrm{cm}.