Practicing Success
Practicing Success
CUET Preparation Today
Sodium has a work function of 2 eV. Calculate the maximum energy and speed of the emitted electrons, when sodium is illuminated by radiation of wavelength 150 nm: |
$7.5 \times 10^{-19} J$ and $3.2 \times 10^3 m / s$ $13.2 \times 10^{-19} J$ and $1.5 \times 10^6 m / s$ $7 \times 10^{-15} J$ and $1.2 \times 10^4 m / s$ $3.5 \times 10^{-19} J$ and $2.4 \times 10^6 m / s$ |
$13.2 \times 10^{-19} J$ and $1.5 \times 10^6 m / s$ |
The correct answer is Option (2) → $13.2 \times 10^{-19} J$ and $1.5 \times 10^6 m / s$ |
