A) \[5.9\times {{10}^{14}}cycle/s\]
B) \[6.5\times {{10}^{14}}cycle/s\]
C) \[9.4\times {{10}^{14}}cycle/s\]
D) \[6.08\times {{10}^{14}}cycle/s\]
Correct Answer: D
Solution :
Work function \[\phi =h{{v}_{0}}\] (\[{{v}_{0}}\] = threshold frequency) So, \[{{v}_{0}}=\frac{\phi }{h}=\frac{2.51\times 1.6\times {{10}^{-19}}}{6.6\times {{10}^{-34}}}\] \[=6.08\times {{10}^{14}}cycle/s.\]
You need to login to perform this action.
You will be redirected in
3 sec
