﻿   When a certain metal was irradiated with a light of frequency 3.2 × 1016 Hz, the photo-electrons had twice the kinetic energy as emitted when the same metal was irradiated with light of frequency 2.0 × 1016 Hz. Calculate the threshold frequency (v0) of the metal.  : Kaysons Education

# When A Certain Metal Was Irradiated With A Light Of Frequency 3.2 × 1016 Hz, The Photo-electrons Had Twice The Kinetic Energy As Emitted When The Same Metal Was Irradiated With Light Of Frequency 2.0 × 1016 Hz. Calculate The Threshold Frequency (v0) Of The Metal.

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## Question

### Solution

Correct option is Kinetic energy of photoelectrons emitted = hv – hv0 = h(v – v0      .

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