If photons of frequency v are incident on the surfaces of metals A and B of threshold frequencies \frac{v}{2} and \frac{v}{3} respectively. The ratio of the maximum kinetic energy of electrons emitted from A to that from B is -

CBSE Class 12 Physics 2020 Delhi Set 1 Paper - Question 8

Question : 8 of 37

Marks: +1, -0

If photons of frequency

v

are incident on the surfaces of metals A and B of threshold frequencies

\;{v}/{2}

and

\;{v}/{3}

respectively. The ratio of the maximum kinetic energy of electrons emitted from

A

to that from

B

is -

Solution:

(b)

3: 4

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