Dual Nature of Matter and Radiation

Section: Physics

Question : 16 of 16

Marks: +1, -0

Energy required to remove an electron from aluminum surface is 4.2‌eV. If light of wavelength 2000Å falls on the surface, the velocity of the fastest electron ejected from the surface will be

[AP EAPCET 18 May 2024 Shift 1]

8.4×105ms−1
7.4×105ms−1
6.4×105ms−1
8.4×106ms−1

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