Question

When a certain metal was irradiated with light of frequency 4.5x10¹⁶ sec-¹, the photo of electron emitted had three times the K.E as the K.E of photo electron emitted when the same metal was irradiated with light of the frequency 2.5x10¹⁶ sec. find the critical frequency of metal. (1.5x10¹⁶/s) pl
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Answer 1

Answer:

sorry I didn't know the answer