Velocity of the electron emitted by Li- Phi- -work function- - 2-90 eV- of light of frequency 4-77x10 sup1-5 S-1 is absorbed is -1 eV - 1-6 times- 10- sup1- -8313- -a- 3-10 x 106 ms- sup1- -b- 6-20 x 108 ms- sup1- -c- 2-51 times-106 ms - sup1- -d- 4-86x108 ms -1

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1900's Physics and Wave

Velocity of t...

Question

Velocity of the electron emitted by Li(Φ (work function) = 2.90 eV) of light of frequency 4.77x10¹5 S-1 is absorbed is (1 eV = 1.6 × 10-¹⁹)
(a) 3.10 x 106 ms-¹
(b) 6.20 x 108 ms-¹
(c) 2.51×106 ms -¹
(d) 4.86x108 ms -1

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