-- 2. The work function of metal is 1.2 eV. Light of wavelen... — Physics | Mockzy | Mockzy

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-- 2. The work function of metal is 1.2 eV. Light of wavelength 4000 Å is incident on this metal surface. The maximum possible velocity of emitted photo-electrons will be

A

6.12 x 10⁴ m/s

B

8.17 x 10⁵ m/s

C

9 x 10⁹ m/s

D

1 x 10³ m/s

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