CUET Preparation Today
The threshold wavelength of silver is $3250 × 10^{-10}m$. The velocity of the electron ejected from the silver surface by ultra violet light of wavelength $2536 × 10^{-10}m$ is approximately: (Given $h = 4.14 × 10^{-15} eVs$) |
$6 × 10^5 ms^{-1}$ $0.6 × 10^8 ms^{-1}$ $61 × 10^3 ms^{-1}$ $0.3 × 10^6 ms^{-1}$ |
$6 × 10^5 ms^{-1}$ |
The correct answer is Option (1) → $6 × 10^5 ms^{-1}$ |
