OnlineCBT
Chemistry · Structure of atom
हिन्दीA microscope using suitable photons is employed to locate an electron in an atom within a distance of \( 0.1 \text{ \AA} \). What is the uncertainty involved in the measurement of its velocity (\( \Delta v \))?
Correct answer · Option 4
\( 5.79 \times 10^6 \text{ m s}^{-1} \)
Explanation
Using \( \Delta v = \frac{h}{4\pi m \Delta x} \) with \( \Delta x = 0.1 \text{ \AA} = 0.1 \times 10^{-10} \text{ m} \), we obtain \( \Delta v = 5.79 \times 10^6 \text{ m s}^{-1} \).
