Modern Physics 2 Question 15
15. The radiation corresponding to
(2014 Main)
(a)
(b)
(c)
(d)
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Solution:
- Key Idea The problem is based on frequency dependence of photoelectric emission. When incident light with certain frequency (greater than on the threshold frequency is focus on a metal surface) then some electrons are emitted from the metal with substantial initial speed.
When an electron moves in a circular path, then
Work function of the metal
$$
