Threshold Frequency of Metal: 1.83e48Hz

NayHoMa · Jun 1, 2009

Light of frequency 1.21e15 Hz illuminates a piece of tin, and the tin emits photoelectrons of maximum kinetic energy 1.96 eV. What is the threshold frequency of the metal?
Planck's Constant*Frequency = (Planck's Constant)(Threshold Frequency) + Maximum Kinetic Energy
1.21e15 = (6.63e-34)(x) + (1.96eV)
(1.21e15-3.136e-19)/6.63e-34 = X
Answer I got = 1.83e48Hz

might be in the wrong section, I apologize if it is

Hao · Jun 1, 2009

On the LHS, you did not multiply frequency with Planck's Constant.

It is alright other than that.

Threshold Frequency of Metal: 1.83e48Hz

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