When a certain metal was irradiated with light of frequency \( 4.0 \times 10^{16} \mathrm{~s}^{-... VIDEO
When a certain metal was irradiated with light of frequency \( 4.0 \times 10^{16} \mathrm{~s}^{-1} \), the photo-electrons emitted had three time the kinetic energy as the kinatic energy of photo-electrons emitted when the metal was irradiated with light of frequency \( 2.0 \times 10^{16} \mathrm{~s}^{-1} \). Calculate the critical frequery \( \left(v_{c}\right) \) of the metal.https://bit.ly/YTAI_PWAP https://www.pw.live
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