Question
Question: The maximum kinetic energy of the photoelectrons is found to be 6.63 × 10<sup>–19</sup> J when the m...
The maximum kinetic energy of the photoelectrons is found to be 6.63 × 10–19 J when the metal is irradiated with a radiation of frequency 3 × 1015 Hz. The threshold frequency of the metal is
A
1 × 1015 Hz
B
3 × 1015 Hz
C
2 × 1016 Hz
D
2 × 1015 Hz
Answer
2 × 1015 Hz
Explanation
Solution
KE = h(n–n0)