Consider two separate ideal gases of electrons

Question:

Consider two separate ideal gases of electrons and protons having same number of particles. The temperature of both the gases are same. The ratio of the uncertainty in determining the position of an electron to that of a proton is proportional to :-

  1. $\left(\frac{m_{p}}{m_{e}}\right)^{3 / 2}$

  2. $\sqrt{\frac{m_{e}}{m_{p}}}$

  3. $\sqrt{\frac{m_{p}}{m_{e}}}$

  4. $\frac{m_{p}}{m_{e}}$


Correct Option: , 3

Solution:

$\Delta x . \Delta p \geq \frac{h}{4 \pi}$

$\Delta x=\frac{h}{4 \pi m \Delta v} \quad v=\sqrt{\frac{3 K T}{m}}$

$\frac{\Delta \mathrm{x}_{\mathrm{e}}}{\Delta \mathrm{x}_{\mathrm{p}}}=\sqrt{\frac{\mathrm{m}_{\mathrm{p}}}{\mathrm{m}_{\mathrm{e}}}}$

Leave a comment

Close

Click here to get exam-ready with eSaral

For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.

Download Now