OnlineCBT
Chemistry · Structure of atom
हिन्दीA microscope using suitable photons is employed to locate an electron within a distance of \( 0.1 \text{ \AA} \). What is the uncertainty involved in the measurement of its velocity?
Correct answer · Option 1
\( 5.79 \times 10^6 \text{ m s}^{-1} \)
Explanation
Using \( \Delta v = \frac{h}{4\pi m \Delta x} \), with \( \Delta x = 0.1 \times 10^{-10} \text{ m} \), \( m = 9.11 \times 10^{-31} \text{ kg} \), we get \( \Delta v = 5.79 \times 10^6 \text{ m s}^{-1} \).
