Question

Q] ᴀ photosensitive metallic surface has work function, h Vo. If photons of energy 2 hvo
fall on this surface, the electrons come out with a maximum velocity of
4 x 10m/s.When the photon energy is increased to 5 hvᴏ, then maximum velocity of
photoelectrons will be?

(a) 2 x 10^6 m/s
(b) 2 x 10^7m/s
(C) 8 x 10^5m/s
(d) 8 x 10^6 m/s​

Answer 1

Answer:

A photosensitive metallic surface has work function hv

0

. If photons of energy 2hv

0

fall on this surface the electrons come out with a maximum velocity of 4×10

6

m/s. When the photon energy is increases to 5hv

0

then maximum velocity of photo electron will be

Medium

Answer 2

Answer:

(D) 8 ×10 ⁶ m/s

Explanation:

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