A) \[{{10}^{-4}}s\]
B) \[{{10}^{-10}}s\]
C) \[{{10}^{-16}}s\]
D) \[{{10}^{-1}}s\]
Correct Answer: B
Solution :
The photoelectric effect is an instantaneous phenomenon (experimentally proved). It takes approx time of the order of\[{{10}^{-10}}s\].
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