Light of energy 1.12 x 10\(^{-18}\) J is incident on a metal of ejected electrons with maximum energy of 8.0 x 10\(^{-19}\)J. Calculate the threshold frequency of the metal. [h = 6.626 x 10\(^{-34}\)Js]
a
4.8 x 10\(^{14}\)Hz
b
1.2 x 10\(^{15}\)Hz
c
1.7 x 10\(^{15}\)Hz
d
2.8 x 10\(^{15}\)Hz
Explanation
Correct Option
aVideo Explanation
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