Ultraviolet radiation of 6.2 eV falls on an aluminium surface (work - function = 4.2 eV). The kinetic energy in joule of the fastest electrons emitted - Sarthaks eConnect

Ultraviolet radiation of 6.2 eV falls on an aluminium surface (work - function = 4.2 eV). The kinetic energy in joule of the fastest electrons emitted is
A. `3.2 xx 10^(-21)`
B. `3.2 xx 10^(-19)`
C. `3.2 xx 10^(-17)`
D. `3.2 xx 10^(-15)`

Ultraviolet radiation of 6.2 eV falls on an aluminium surface (work - function = 4.2 eV). The kinetic energy in joule of the fastest electrons emitted

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